There are principles that work and if you break them you need to have a better alternative in place. Excising longstanding UI features, or forcing users to use two separate and incompatible systems to run concurrent applications, needs to be done with exceptional control over the design decisions that constitute the change. By all accounts, and by my own impressions, this was not the case in Win8.
It's been many years since I was inside, so this is pure speculation -- but I'm pretty certain that the decision to have both Metro and Desktop in one system was ultimately a marketing decision, taken along these lines: (i) Devices are a big part of the future and cannot be ignored, (ii) given form factor, devices typically run full-screen, (iii) in the face of a massive existing apps base for iOS and Android, how to rapidly kickstart app development for MSFTs new devices platform? (iv) leverage the existing desktop installed base by bringing Metro into it without disruptively impacting existing Win32 ecosystem, and drive Metro app development to a point where there's enough for Metro to stand on its own. (v) Given that devices are rapidly evolving to match CPU, memory and storage capabilities of larger systems, it makes no sense to develop a device-specific opsys -- rather lay the architectural foundations for a single opsys that scales to the execution target as required. WP is a work in transition. Yes, Win8 is but the first stab (and most of the work is in the engine and plumbing under the UI), and has plenty of holes and inadequacies, but the main foundations are laid, and can now be built on.
Not radical - incompetent. Mismanaged. Schizophrenic. Evidence of a fractured corporate politik.
I think it is far too early to make that judgment or draw that conclusion.
It's you vs the market then...
I'm getting by alright on Win7 since uninstalling 8.
Remember all the people refusing to install XP? For two years after XPs release, many self-styled "power users and experts" refused to go near the "teletubbies" UI of XP. Downgrading to Win2K Pro was what they recommended. Sometimes the self-styled boffs take a while to catch on. That's history. I suspect the same is happening here, because the Desktop side of Win8 is every bit as good and in many respects better than Win7.
Still, each to his own. I could never go back to Win7, because Win8 is faster, easier, slicker, cleaner. Once customised and cleaned out, the Start menu is actually faster and easier to use than Start>Programs in Win7. And I don't use Metro at all, except on the Surface RT which I set up for my ancient mother.
Still, I rejoice that Win7 works fine for you. Please continue to use it.