Of course new versions of Windows introduce new features! If you want to use those new features, you need the new version.
Backward compatibility means that once they introduce a feature in one version of Windows, they go to great lengths to keep that feature working in subsequent versions.
It doesn't mean they have to backport every new feature into old versions of the OS.
Also, Windows 8.1 doesn't have to be a terrible experience. Just get Start8 for $5, or whatever Start menu replacement you like, and you essentially have a much-improved Windows 7.
I shouldn't be required to purchase a 3rd party application to tweak a stupid setting easily. Having to code a solution and work with the Windows Registry is hell and something that most people won't bother doing.
If your business strategy is "there's a cheap $5 3rd party app that fixes that!" - you deserve to go out of business.
Whether you like Windows 8 or not, doesn't change the fact that Windows 7 is six years old, and you can't run off an old operating system forever.
http://www.netmarketshare.com/operating-system-market-share....
So it's lame that they're releasing software that doesn't work for the majority of their users, because they're trying to shove Windows 8 down people's throats, which is quite frankly terrible user experience.