StreamOfTheSky
Adventurer
Again, its a matter of whom you're gaming with. The guys who've tried this tweak out haven't been powergaming, they've been modeling their favorite martial artists.
It's not like the people I usually game with are jerks, either. But when I'm designing classes, I try to take such things into account. I don't mind doing class skill swaps, weapon proficiency changes, even what base save is your good save on a case by case basis. But I don't write any of that down as the rules. Ideally, the rules are carefully balanced so that no major abuse can occur, whether people would try to do that or not.