I think where MS missed the boat and brought on quite a bit of their bad reputation was by trying to make touch the central focus of their next generation offering, Windows 8. For a tablet and a phone, touch makes perfect sense, but for a desktop/laptop it just doesn't really add up to a balanced equation. You're simply offering a third method of interacting with the computer, but one that is typically quite awkward with a device, the screen, in a fixed position. People took a long time to get comfortable with both a keyboard and a mouse and now that they are, it will take a
very significant improvement in a computer's user interface to make them feel the need for a change and the desire to adopt a new model and touch just didn't exceed this threshold. I think that this is evidenced by the lack of standalone monitors that support touch. There simply is no demand for them.
MS appears to have not really done very much analysis before hanging their hat on touch. They saw tablets take off and assumed that the reason that everyone wanted one was because of touch. To an extent, that was true, but I think what really attracted people to tablets was their simplicity and intuitiveness. The vast majority of people will only do one thing at a time on a computer. They'll look at email, then do some Internet browsing, a bit of social media, and maybe a bit of gaming. None of those interactions are improved by having a complex yet extremely flexible platform like Windows. Tablets, for the most part have eliminated the complexity that has always been at Windows core. Yes, Windows will do everything that you can think of and more, but most folks don't do this. They don't understand computers that well and only want a simple interaction.
For example, let's use email. Most people understand how to type in their email address and password, just like they do if accessing email in a browser. So, on a tablet you pick settings, email, and then the tablet asks you for your email address and password and then essentially configures itself. From there on out, you touch the email icon and off you go. Windows, on the other hand, still presents you with myriad options when setting up an email account, most of which people don't have the slightest clue about, nor do they care or desire to learn about them. MS Office has a similar bent. It is extremely powerful and will do most everything that you can imagine doing with it. And if it hasn't yet been thought of, it's extensible, so you can add a new function by simply doing a bit of programming. So, MS Office has all this power going for it, but most users barely venture beyond changing a font style or the font itself. The vast majority of users have probably never even inserted a picture into their documents nor do they really want to.
MS's path over the years has been to add functionality and capability to both Windows and Office to make them do everything that they possibly can. For power users and the tech-savvy user, this is fabulous; however, for the casual user which makes up the majority of their user base, it is unwanted and unused complexity.
Everyone panned and laughed when MS came out with Bob, but it was an attempt to reach out to the casual user and to try to make them feel more comfortable and at home with using a computer. While it may not have been the best method to do this, I think that it was a move in the right direction. MS should either develop a light and simple Windows OS for the masses that keeps the complexity way down and a more flexible power-user version for the rest of us or they should work very diligently to hide the complexity of Windows from the casual user, but still let the power users open the hood and tinker with what's inside.
So, how does this relate to the SP3? Well, the SP3 is kind of stuck straddling both worlds, PC and tablet, and doesn't quite measure up in either one. I think that it does fairly well as a laptop, but if you try to run legacy desktop software on it using touch at all, you're left with a very finicky and difficult to operate Windows controls. It has a lot of potential as a tablet, but is left wanting by a lack of apps and by the generally poor apps that do exist. Here again--on the tablet side--we're faced with the chicken-and-egg scenario. Which comes first? The users or the apps? In this case, we're not getting a lot of apps because the demand just isn't there. Most users aren't using touch on the desktop/laptop side, so there's little incentive to update apps. The SP3 (and 2 and 1) are, for the most part, the only real audience for MUI apps and there aren't yet enough of us to make a significant change in app demand. Even MS is not in any hurry to port MS Office to touch because there isn't a lot of demand and the software won 't really benefit nor does it lend itself to a touch interface.
Finally, when MS introduced the SP3 and it still had some fundamental problems that not just one or two journalists encountered, but pretty much all of them did, they really shot themselves in the foot. And that's a whole lot of baggage to overcome with one "it continues to get better" product.
That's how I see it at any rate. Aren't you sorry that you asked?