There is no problem with exotics. You're probably just not playing strikes a lot. I see people using all sorts of stuffs in strikes. When it comes to the kings fall raid the majority of stuff you see end up being ToM or a weapon that drops from the raid. As for PvP, that's all on legendarys and how they always seem to out do exotics. And buffing exotics so that they would be on par with most of the legendary stuff would only cause Y1 problems to arise again.