Exactly. You can make a huge statement to WWE by cancelling your service, etc., but to say that booing/hijacking at a show is useless makes no sense to me.lol What's wrong with paying money to boo someone? That's half of the reason to go to a wrasslin' show. Just because they boo the people the company promotes as the 'good guys' doesn't make it dumb. Historically speaking, crowd reactions are the gauge that bookers and promoters use to determine who they should push, the only reason it didn't work with Cena is because he was a weird anomaly who still managed to make them a huge profit despite being hated by more than half of the live audience.
I doubt rebelling against the company is the only reason the hijackers pay to see a WWE show anyway. There's plenty of other people on the roster to enjoy, and a lot of them are probably a lot like me and have just been wrestling/WWE fans for so long that they an infirmity to keep watching no matter how good or bad the show is.
WWE has changed the tide of things too because of things like this. Take mania 30, for example, none of that would've happened had fans not responded how they did.