Actually, Schumacher apologised for Batman And Robin. I don't recall him apologising for Forever, and why should he? It was a ridiculously successful film that was actually fun to watch.
Thank you for actually noticing that. Plus, Batman & Robin is hilarious to me for one simple reason: Chris O'Donnell turned down a little role in Titanic to reprise his role in this crap storm of a movie. DiCaprio then went on to fame and fortune in the same role. Think about that.
Did you know they passed over Christian Bale in favour of Chris O'Donnell? I cannot even begin to imagine how that happened. But then the Great Unpleasantness did have a couple of years of being inexplicably successful.