I would've agreed with you if this wasn't Nolan's movie. I'm sure Bale can fit in well in that
Dead End costume. But all the same the suit is meant to give him an edge over his foes. Even in the comics he's wearing kevlar, it makes sense in the film that he's wearing someothing that's state-of-the-art. I'm not a big fan of Batman's gadgetry myself, but it does work well with his characterisation. In TDK they did it even better than BB, where the possible tech became so out-reaching that standard morality is questioned. Also,
this Batman evolves. I don't mind the idea that he's willing to use multiple suits to achieve his ends. The dogs... forget that, he got side-tracked once but he really punched the pooch bad. I like the TDK suit because it reminds me of the one he wore in DARK KNIGHT RETURNS while facing Superman. Now, I don't want Nolan to change his style and give us a
Dead End Bat-suit. He's already gone past that. I'm guessing we'll be getting the clothes-treatment in the next film franchise.