It's pretty stupid shit.  I can see his point, but chill the fuck out.  I hate celebrities.  I do happen to really like Bale as an actor, but this shit pisses me off.
I only heard the audio and nothing else a few days ago, but I did assume that the scene he was doing was probably fairly charged, and that's why he got so worked up.  I've known a few actors, and I know how hard it can be for them to get into a certain frame of mind, or how different they can react to you once they get there (they need time to get out of it, sometimes).  So I can understand it... but it's still on the excessive side.  By a lot.