So... if the game is based entirely around pleasing Donald Trump, and you do something that does not please Donald Trump, is it fair game to say that you should have been trying to please Donald Trump... even if what he wants is not reasonable and not fair?
The task was shilled as one that the Buick executives would decide - the implication being that if the execs were happy, Trump would be happy. It just so happens that Trump interestingly never showed his discussion with the execs - they probably liked the guys' presentations and this was the kind of task that Trump could manipulate. I don't think there's ever been a task like this where Trump or one of his minions didn't talk with the execs afterward. The guys had no reason to think that Trump's opinion mattered.
It's almost the same as if this were a fundraising task, and Adam raised $100,000 more than the women, but Trump getting mad because Michael Andretti wasn't the PM and firing them both. But I think that if the guys had known from the start that Trump was the one who would decide the winner, they might have chosen differently.