Never wanted to be a defender of MS, but I do think that Windows 8 was horrible with their push to standardizing tiles across mobile devices, XBoxes and PCs. It just didn't work well on PCs, even with touch screens. They also wanted to get in on the App store scene like Apple. I believe Cortana uses Bing for search results which drives up revenue. People hated 8, they had to give away 10 to keep customers.
I find W10 to be a good mix between my favorite Explorer of Windows 7, with a touch of tiles from Windows 8. I also think Windows 10 is a lot more stable that either 7 or 8. I remember a similar push back from Windows 1, which was really hard for people to adjust to from using a DOS prompt. "How to I get to a DOS prompt!?" and "I don't need a stinking mouse!"