Originally Posted by ThePhantasm
Because Blake is just a film prop for the other characters like Wayne and Gordon to play off of. He isn't a real character, he's an "idea" floating around... the idea that anyone can become Batman. That's all Blake is. That's why Blake sucks.
Most Christopher Nolan characters act like this. They don't talk like real people. They react according to the themes of the movie, and their actions don't make much sense outside of that. Nolan's talent lies in making sure you don't realise this, but he failed in TDKR.