More specifically it's another change that won't happen because it's not posted in a specific language. Every DC has just as many problems as any other. People are alike all over.
Back to the point at hand though, I generally agree. I mean ilvl, yes. Abilities, not so much. First, there's stuff like Plenary Indulgence, Aetherpact, Passage of Arms? Not really critical in most content, especially not 4man. Second, people could just be bad. Your AST might not have Sleeve Draw and that's not nice, but what difference does it make between an AST that *does* have Sleeve Draw, but just doesn't use it? Whereas better gear will make a bad player more useful, regardless of how they actually play. Brotherhood is a very good skill, but if your MNK doesn't use it, it doesn't matter if it gives 5% or 1000%.