While I see the advantage of beeing pedantic now, I don´t want every feat being rewritten in non abusable language. Lets be honest, there is always a gamer finding some loophole.
Instead the rules should empower the DM, to make rulings that rely on common sense. Like: If a feat has a silly effect (like some attack doing more damage on a miss than on a hit), you may disallow the use of the feat in that case.
That is what I want to see. Not "legal language" feats and spells, just to make sure noone can find loopholes. Usually you not only close loopholes, but also clever and creative use of abilities.
Remember the bag of veteran armors? The bag of rats. 4e had a clause that allowed DMs to rule such things out. But it was more and more replaced by rules updates, instead of general guidelines how to handle such rule abuses.
e.g.: Veteran armor and other magic items with abusable daily powers, could have all been shut down by refering to the bag of rats guideline:
i.e. a bag of veteran armors is the same abuse as a bag of rats, just with another name. And if PCs are trying to abuse the hell out of it, just rule, that this daily power only works once for each PC...