My bet is that they try to fit a round peg in a square hole.

Damian as Robin is a very different creature than any others, even Jason, with whom he has similarities in his character (abrasive and harsher compared to the previous ones - Dick and Tim respectively) and it certainly plays a part. Robin is designed to be a team member, either as the minor portion of the Dynamic Duo or the well-balanced leader of a super-team. But neither Damian nor Jason fits in those roles. Jason found himself a family/team with the Outlaws, but he isn't exactly the leader in the same vein Dick or Tim can be or have been in their own teams. And Jason works best when he is less associated with Batman, not more.

I think that Damian taking his distance with his father, at this point in his published history, is actually for the best. Repeated attempted to make him like the "successful" Robins will hinder him more in the long run, IMO, because it'd make escaping this role harder. Look at Dick (the Original) and Tim (the Perfect) who, one way or another, are constantly defined/reminded of their time in the Robin colors, where Jason has truly become Red Hood, made this identity his and Robin is only a small part of his story and who he is.

Damian as the Son of Batman doesn't need to be Robin to exist, and the longer his character will be badly used (like in Supersons, or that Super Sons graphic novel or whatever "Ian" horror story) the harder it'll be for him to grow.