Nonsense. The club made the call to punt Bennett long before any of that unfolded when they pursued Bellamy in the first place. They'd already decided Bennett wasn't in their future plans and just hadn't bothered to tell him. Remarkably, when he found out Bennett even conceded himself that this was a good thing for the club to do and he was happy to help that transition take place after his deal was up in 2019 but he was always planning to see out his deal. I think the actions of the Broncos suggest they had plans for Bennett to go sooner than that though because they immediately went to interviewing Seibold as soon as the Bellamy deal fell over. Asking Bennett to shove off to be replaced by the best Coach in the game in Bellamy is one thing, but to move to punt him for the likes of Seibold or even Walters, well that's another matter entirely and only a fool could be surprised that Bennett saw it that way too.
Bennett, not the club, was the one who proposed the original plan to transition his replacement into the role. He wanted to finish his current deal up to the end of 2019, take another year in 2020 and during that season get everything set up for Jason Demetriou or another replacement to take over in 2021.
The club kept Bennett in the dark for something like 5 weeks IIRC then sent him a letter to offer him an Admin role. The longest serving Coach the club has ever had, who has contributed far more to this place than your heroes Paul White and Karl Morris have ever contributed themselves, was sent a letter in the mail to offer him a back office role, even after he'd been the proactive one that engaged THEM about succession planning and getting a replacement for himself in place. It was insulting to say the least and no matter how much you are in love with Paul White, even you surely couldn't argue Bennett deserved more respect than that.
As for the games Bennett played, well shock horror, arguably the greatest gamesman in the NRL didn't take his brushing lightly and had plenty of tricks up his sleeve to handle exactly that. Paul White and Karl Morris were utter fools to ever entertain the idea that Bennett would shut up and take this sort of disrespect lying down without throwing anything back himself. In that sense, I shouldn't be surprised by the foolish underestimating of Bennett because Paul White has quite a history of grossly underestimating people and mishandling critical situations, so I guess his dropping the ball on Bennett is just another one to add to the list.