It's kinda odd for them to be using the word "mask" to mean, what I think based on context, commenting code out. It looks like they developed code to make it so that what you see happening physically in game to sync up with what you're seeing in the battle log, but actually chose to comment it out, fearing that it would actually piss players off.

I personally would've wanted them to implement that now. It's pissing ME off that I can't rely on looking at what's going on graphically on my screen to tell me what's really going on. The actions don't match up so I sometimes forget that I can't trust one or the other to give me an accurate depiction of the current situation.