8 changed a lot of UI for no reason other than to chase the mobile market. 8.1 reverted a lot of that and people liked it, but the damage to 8's reputation had already been done.

If they kept the edition alive for a few years 8.1 might be remembered as a redemption story like Windows 98 Second Edition, but they rushed 10 out the door - as a free upgrade, no less - to get back the goodwill they'd lost.