The part of your quote highlighted is not "posting the situation". It is presenting your opinion and I posted my response to your opinion. Constantly saying AMD suck because not enough game devs support their stuff is disingenuous.
Game devs look at the bottom line, it is for the same reason very few of them support multi monitor, mantle, tressfx, trueadio, physx or Nvidia hairworks. Every additional level of support for niche products adds development costs for what the publishers see as "no return of investment". They majority of devs look at consoles first and PCs a distant second. So they will inevitably do "just enough" to get their AAA title ported to PC. So that means no support for niche PC "gimmicks".