In short for speed of executions you can't discuss all the time. However there are time for reviews, debriefs etc use it to bash if necessary at all costs (ie better to expose a moron at the approriate time and the morons above than become cannon feeder against those who will not be lead by morons).
Secondly, once your contract is over, you are free to shit, hmm, sorry, express yourself :).
have a nice day.