Nifft
Penguin Herder
Not quite.I don't find any feats a "tax" and think this is ridiculous thinking. It's a build option, nothing more. For example, if I want to play a Stormsoul Genasi Storm Sorcerer, my racial ability stat bonuses are all kinds of wrong even though the flavor is all kinds of right. The racial power of the Stormsoul Genasi essentially works as a great feat for the class, while the actual "feat" actually takes the place of a +2 stat bonus to the attack stat. This mitigates the need for a total min/max stat dump to be viable.
Your PC is not competing against people with better stats.
Your PC is competing against people with better stats who also take this feat (because, if allowed, it's better than almost any other feat in the game -- overwhelmingly better by 15th level).
Every character concept -- except the concept "I suck at my job" -- can benefit from performing its job better, and in 4e, all jobs involve hitting (including the job of pacifist cleric, which is actually lots of fun IMHO).
If something is so good that everyone will want to take it and the rules of the game are written with the assumption that everyone will take it, it's not much of an option any more. It's a tacit requirement. If it costs you a resource slot, it's a tacit tax.
Cheers, -- N