No, not at all. It's not about the actor
@Airwings, I just feel considering where this Batman is at in his life, that it'd be kinda soon to be introducing a young partner in crime.
Just because something
might happen in the future that would stop them from exploring Robin, thats no reason to rush to do it, especially if that particular version of Batman in this specific time in his life is not ready for him, because then it could just feel incredibly unauthentic to the narrative and the Bruce Wayne we're exploring and could end up as just Robin for the sake of Robin,
Again, I'm not saying don't do Robin, I'm just saying give
this Batman at least one more movie, maybe the trilogy on his own. It's just as possible that this universe could be extremely successful and we'll go beyond the trilogy thats been talked about, meaning we can get more with Batman and eventually Robin.
Don't you think it'd be better anyway to wait? So that Rob's Bruce is a bit older, a bit more experienced, and has more to teach Robin because in the movie thats about to come out he's still learning everything. To go from that to then teaching a young boy how to do it in the very next film would just feel too soon I think.