I'm sorry, but how do you consider PAGKs being able to use Psycannons effectively, unstable? If that's not a "nerf" then I'll call that a kick in the balls.
And how does taking away things give us the same or more options? Strikes can't use Psycannons worth a damn anymore, same with Purgs. Our diverse CC weapons got hacked to medioctrity. Liked that different weapons did different things and there was debate which to take in what ammonts. Now if you're trying to save points, take a sword, otherwise take flachions and hammers because there's no real point to taking anything else. That's a kick-in-the-balls/nerf or whatever you want to call it.
When Tau came out, here's something new and cool that your army was missing!
When Eldar came out, here's a something awesome and here some new toys to play with!
When Space Marines came out, here's some rules to make your own custom chapter(s) with lots of toys!
Then Nids came out, bland, bring big bugs and walk forward. If you want to do something else, give us more money.
Then Guard came out, removed special rules and tanks galore leaving blandness
Now GKs, more blandness.
Sorry, but the game is still coming down from that high of awesomeness and new toys. When all armies are nothing but stale bread maybe then people will freaking out so much.