All sorts of adapters are available on the market today so even a VGA monitor can be connected to the Surface. There's no criticizing Microsoft here because DisplayPort was the right and best choice--especially for a port-limited device.
Prior to upgrading my Denon A/V Receiver, the best available connection for all devices were Component cables. When I upgraded my Denon, I chose a device that was primarily HDMI-based and then I upgraded all connected devices to those that use HDMI. The end result was less cabling/clutter. Did I have to ditch my "old" connected devices when I upgraded my Denon A/V Receiver? No, because the new Denon A/V Receiver also supported Component connections; however, I got the best value by upgrading my connected devices to HDMI-capable devices.
Similarly, you can keep and connect your "old" VGA monitors to your Surface, but if you want the best value and setup, then upgrade to DP 1.2-capable monitors and daisy-chain them. It's your choice; Microsoft doesn't force you one way or the other.