If game difficulty gets to the point where I feel a need to resort to exploiting the unintended weaknesses in its behavior, then I see that as a failure in the design.
Seriously, path of least resistance and all that. If the bugs are easier to find than the solution to battles, it can't be a good thing. And I can't imagine that's a good feeling for the designer, either. "welp, all my work in setting up a complex scenario and the players would rather glitch the boss on a rock than play it."