I think the bigger issue wasn’t so much that Hendo got a shot as it was that Bisping had JUST won the title in what was a major upset after leapfrogging a big chunk of the division due to short notice.
Nobody minded Edgar getting a shot at Holloway despite not being the top contender because Max had already given all the top young guys a shot and was waiting for the next wave of guys to emerge. Bisping would’ve been an underdog against half a dozen different challengers at that point, but they let him go out and handpick a middle aged guy. Most of didn’t hate it merely because everyone loves Hendo and it would’ve been epic if he’d pulled it off.