DominicCobb said:

He did become Batman. His name being Robin was just a fun little easter egg. There is nothing anywhere to imply he became Robin because obviously he would not and that would make no sense. Never before have I seen a simple easter egg be so harshly criticized...

That does not fit the definition of easter egg by any stretch of any imagination. An easter egg is a hidden joke or references, this wasn't hidden it was out there and in your face.

Also, I never got the slightest impression that it was trying to imply Blake was to become the new Batman. If that was the implication, his name being Robin was all the dumber and more nonsensical. I think there was far more to imply he was to become Robin than to imply he was to become Batman. We discover his first name is Robin, we discover Bruce is alive and well, and we see him making his way to the batcave. This spells out new sidekick to me more than it does successor.