How many of those late departing crews put the reason for the delay as adhering to the minutiae of company procedures? None I suspect.
More to the point, if someone is found to be causing an unnecessary delay and is therefore sacked, what will his erstwhile supine colleagues do? Why, nothing of course.
Apart from the bluff and bluster on this BB, the AOA action is finished. Best that the realisation strike home before more jobs are lost.