Microsoft did fix this, it just isn't what people where expecting. If you use XP Scaling you only get one size, if you use the Windows 8.x Default Slider it uses an algorithm to adjust based on Screen Size, Resolution and DPI, so on my SP3 while using an extended monitor I'm using approx. 150% but on my 24" 1080p I'm using approx. 100%.
What people are wanting is impossible with Win32 Applications without abandoning backwards compatibility.