But back to the OP's point.
D&D4e is really a tactical combat system with a skill system stuck on the side. When the game was first released, it was assumed that most groups would use maneuver warfare, focused fire, and harrying your foes so your allies could land a hit (aid another giving you a +2 attack bonus).
But the two tactics that most people have experience with are focused damage and attrition, so that is what people did, and the fights became long. Add to that the fact that the only other tactic employed was power timing, and the fights became astoundingly long because people would suffer choice paralysis. And then finally, most people moved toward strikers because they had the simplest roll to execute (nearly all power choices performed their primary roll in any situation) and gave an instant reward of being good at your roll.
So the math for the characters was reworked and "fixed" so you had a better chance to hit without aid. The monsters were then reworked so the fights were more brutal and swingy (thus more tension) but much shorter one way or the other. The character concept was reworked so even fewer tactics (with the elimination power choice and power timing) were necessary, and they started focusing feats on the two aspects of the game system that were really well defined, Attack and Damage.
"If you want the children to love you, you have to give them the candy." -Jon Stewart
People want to have tense fights where they heroicly destroy enemies, and they can only do that with the tactics they know, so that is what we have been given. Skill feats are wasted, in the classic sense, because they don't help the system achieve its goals (combat). Kinda like the way a Hummer H2 with 23" chrome rims is a waste at Jeep Safari because it won't get you any further off the road than a Stock Ford Tempo.