Some of us love Damian already, without any redeeming woobie moments. I have a soft spot for evil child prodigies, especially ones who take such unrestrained delight in being absolute terrors. There's nothing wrong with having an abrasive character in the Bat-family. Tim, Dick & Alfred are all great characters, but they all get along very well. You need someone narky & abrasive to create an interesting book, and Damian certainly is narky & abrasive.
(Also, I love his little hooded cape. Damians' outfit is by far my favourite of all the Robin-costumes)