Meh, like you said it's a choice and i know many peple feel that it's a viable tactic in "undefeatable" boss fights. I.e Arceus and Garchomp. That said, if you fought it without D bond, you'd know there is very few wys to win these fights without UBERHAX. Besides, The game is kept as close to the main games as possible and if Dbond is in a movepool for a poke, then it should learn it. Furthermore, it's difficult to remove all Dbonders, seeing as there a a fair few ingame. Quick claw cacturne gets the same results