While George Clooney gets a lot of flack for donning a Batman suit with nipples, director Joel Schumaker really started this with Val Kilmer in Batman Forever.
There can’t be any villain in Gotham who sees that and is like “oh wow he’s really jacked.”
I also think the cowl could’ve been modified just a bit to accentuate Kilmer’s jawline, which would really show what a top-notch Bat-chin that was.
His is maybe a bit more forgivable given that there’s a heavy resemblance to Michael Keaton’s Batman in this costume design, but again it’s just unnecessary to put so much work on defining the muscles on the suit itself.