So, this feature shouldn’t be held as fact, by any stretch of the imagination.
Therefore, his performance (as well as any other performance in that upcoming film) is not under consideration here.
Likewise, I’ll make it clear once-and-for-all that this is all subjective, obviously, and we’re intentionally ignoring timelines and other complicating factors.
This is, rather, a fun way to imagine what the perfect Batman movie might possibly look like, and this opinion is based on the films we’ve seen and how we remember them best.