It's inexcusable, but that doesn't make it not understandable. (Is that a triple negative?) We're dealing with emotions here, and that often doesn't lead to rational outcomes. Most people have been in a work or social situation that snowballed on them to the point that they basically stopped functioning.
Also, only two good things came out of that Memphis series:
1) CJ's breakout.
2) Meyers' breakout. Actually, that turned out to be a bad thing when it led to re-signing him. So, CJ was the only good thing about that Memphis series. Sure, LMA was part of things going poorly, but that's as much egg as it is chicken.