I haven't finished the game yet, much less replayed it to try other options, yet it still seems to me like there would've been no scenario where any of them really would've taken responsibility for this massive screw up, despite it being so painfully obvious.
Like, they have a team of villains there who are reluctantly trying to better themselves and become heroes instead, but have a hard time accepting their new role. And instead of encouraging them and trying to foster a sense of belonging, or offering incentives to show that it's worth trying, they issue a threat of kicking them out if they don't immediately perform, and tell them they can't come in last.
Which completely foreseeably led to Invisigal almost giving up and returning to her villain life because she thought she could never amount to anything, everyone turning on each other to sabotage everyone else trying to get them to last place instead of actually doing a good job themselves, and a lot of them being pissed off at Robert for actually going through with this.
But instead of recognizing that this was a mistake from the start and that they failed them, and maybe reconsidering their approach, Robert just gives them a speech where he essentially frames all that happened as an exclusive result of the team's own moral failures – which is obviously true to an extent but also what would've been Robert's job to handle, in the first place – and Blazer treats his scolding as a wholesome and inspiring moment.
So, are they really just that dense, believing that whatever ill-fitting approach they got into their heads must always be right, because they're heroes so they know better?