Again, that's an extreme and bizarre reading that forces a sort of Vancian mindset onto something that really doesn't need to have any relationship to Vance.
The 4e powers system is pretty Vancian. There's differences, but the system is, literally, "You can do this once per (time span)."
Abstraction of melee combat didn't go away when they created a power system.
4e combat is also not very abstract. More so than most wargames, maybe, but it's pretty particular, still.
Treating most martial powers and even many more magical ones as in-game-world effects forces them to be nonsensical.
I'm not sure I understand. If
Magic Missile isn't an in-game-world effect, why does it have effects, in the game world (namely, a roll to hit and HP damage that can be done at any time, by a character)?
It's the same kind of abstraction that leads to the first level 3e fighter seeming to exchange blows with an enemy a mere once every 6 seconds.
I was personally quite comfortable with the "the attack roll only represents attacks that might get through -- your enemy and you are constantly exchanging little blows, feints, knicks, and dings that do nothing" explanation. That kept it convincing enough for me.
Whether you're using an at-will, an encounter, or a daily does not represent how hard the guy is swinging any more than your one attack roll as a 3e Fighter represented your only attempt to hurt someone that round.
I find it harder to believe that a fighter daily or encounter power is "the only thing that might get through," specifically because you can't do it whenever you want. The power itself has a recharge limitation, rather than being able to do it "whenever you get an opening" (about once in six seconds for your 3e attacks, but more often for high-level warriors skilled in melee combat).
Which is why a martial class build that used only at-wills with "kickers" would work to satisfy that. In that case, the kicker bumps in "whenever you get an opening," without having to use some metagame, nonsensical, recharge mechanic to justify it. It happens whenever you get that opening. That opening might not happen more than once an encounter, or once every 3-5 encounters, but it happens because of the circumstances in combat, not because your muscles recharged.
Why seize on what is clearly among the least simulationist parts of the game and holler that it fails to be realistic?
Simply because it is among the least realistic, and once that threshold (which is different for all people) is passed, it's hard to play the RPG in-character.
Fighter dailies, rogue encouters, warlord healing...to varying degress, for varying players, these pass the threshold of "Can I still have fun pretending to be an elf while this doesn't make any sense?"
If WotC is interested in changing up the feel of how classes play with the Essentials line (and it seems that they are), having martial classes that don't use artificial recharge mechanics would go a HUGE way toward making the martial classes feel martially powered, distinct from other power sources, without weakening them in the slightest.
Think of how a rogue gets Sneak Attack damage, or how a Fighter marks with their attacks, or how Rangers have to be in front to get Prime Shot. These depend on action and reaction in actual combat, rather than artificial and nonsensical recharges. I'd like the Martial power source to take their cues from THAT rather than from Vancian wizard dailies.