..yes?
1:00 Cheers go to boos and remain boos through his entire intro. Look at Silva's face responding to them. That's even where we get this famous picture from, people booing him.
Then less than 20 seconds into the fight, "Let's go Forrest" chants start up. Anderson had fights where they were both cheered, like Marquardt in his first defense. But here, they didn't just have a favorite, but were actively against Silva. What do you want them to do? Throw jars of piss into the cage?
Sure, once the fight was underway, people started groaning at the inaction and cheered action, but that's what fight fans do. Same as the crowd in Abu Dhabi reacted to Charles opening up with the jumping kick and clasping the triangle. If you're gonna compare the way people cheered Anderson's success during the fight, then maybe Charles should have had any actual success in his fight so they could be compared. It's not like the "dessert" crowd hates fighters for winning over their own (as long as it's without controversy). One of the early fight islands in quarantine had a co-main of Lazzez, a guy from an Arabic middle eastern country, vs Warlley Alves who the crowd similarly booed, but who was cheered and clapped throughout his finish, win announcement, and into his interview.
Point is, the crowd was wholly against Silva. Crowds have certainly gotten more boisterous and bigger since Silva's time, but let's not act like fighters today are more hard done by crowds enough that it more negatively affects their ability to win or lose.