The main issue is that sometimes the entire team would stop to produce a demo for E3 or other shows which in retrospect would delay the game from actually comin

The main issue is that sometimes the entire team would stop to produce a demo for E3 or other shows which in retrospect would delay the game from actually coming out. Some would spend so much time making sure their demo looked good, it became an engine show-off and they knew the game wouldn't ship complete like that.