Didn't see it for myself since I haven't watched any WWE since the Greatest Royal Rumble mess, but generally, paying customers can do whatever they want within reason.
I'm kind of torn on this.
On the one hand, yeah, you're right. Crowds should be allowed to chant whatever the hell they want. In fact, one of my favorite things about professional wrestling is the way crowds are basically given free reign to chant whatever the hell they want.
On the other hand, I think we underestimate how important crowd reaction is to making or breaking a show. Sure, it's the WWE's job to create a product that makes crowds want to get into the show, and there's an argument to be made that if the they just put on a better show, the crowd will get into it. You can look at the NXT Takeovers for easy examples of this. NXT didn't start out with a rabid following, it developed that by telling good stories and putting on good matches. At the same time, though I look at a magical moment like Nakamura vs. Samoa Joe, and I try to imagine what that match would have looked like if that crowd had not been so red hot. They were absolutely on fire for Shinsuke Nakamura, and they made him look like a bona fide superstar. When they brought his theme music back with pure chanting near the end of the match, I got fucking chills. Imagine if, instead, the crowd had been doing random countdowns, or playing with random beach balls, or just chanting CM Punk. It still would have been a good wrestling match, but I wouldn't have gotten chills out of it, you know?
That's where I am with some of the crowd hijackings. It has its place, but damn, can we stop for a minute?
Next week, Bobby Lashley is fighting Roman Reigns again to determine who will face Lesnar next. The existence of this rematch highlights the fact that their Extreme Rules match had no stakes whatsoever and was utterly pointless. When that match comes on, by all means, hijack the show.
If they had been the main event of Extreme Rules despite their match having no stakes, by all means, hijack the show.
But we got Seth Rollins vs. Dolph Ziggler for the intercontinental championship in the main event of a pay per view. And we still shit all over it for some reason.
When I look back at the Attitude Era, I think my actual favorite thing about it was the way every crowd went totally batshit insane whenever Stone Cold's music hit. I'm not saying anything on modern WWE television deserves that kind of pop, but damn, how do we expect the show to be good if we can't get the audience to invest in anything because they'd rather just shout random things?