I agree with the part about giving the match a chance. Reigns delivered with Bryan and might do the same with Brock. Brock is completely different which simply means the match will be different. It doesn't necessarily mean worse.
The reality is that this match will receive a poor reaction. I reckon straight from the off especially if it leaked Brock is leaving. The best hope for the WWE is the fans start off cheering for Brock and the two put on a great match - something I'm optimistic about - before warming to Reigns. Maybe he needs to get his head kicked it for it to happen.
Worst case scenario is the boos are so incredibly loud that it becomes distracting. Also CM Punk chants which will almost certainly happen. I'd be pissed off if the fans don't give the match a chance because "hijacking" is just irritating. They bought the ticket so should be allowed chant whatever but it doesn't make it any less annoying.
While I'm less optimistic about the quality of Lesnar vs. Reigns, I do hope that it turns out to be a good match; hell, I
WANT it to be a good match. But yeah, unfortunately, there are going to be some people who'll rage against this match no matter what.
Some aren't fans of Lesnar and/or Reigns, which I can understand as it's hard to care about a match featuring wrestlers that you're just not into as a fan.
Some are going to rage against it out of some sort of bullshit smarky principle even if it turns out to be a good match because Roman Reigns is in line with the cosmetic formula that Vince McMahon prefers.
Some are going to rage against it because while they may like Roman Reigns, they don't think he's ready for this spot and would rather see someone else in it that they believe is ready for it.
Some are going to rage against it because they paid their money, which entitles them to express themselves however they want in whatever way they want. A good deal of the time, this means that they'll do whatever they can to ultimately become the central focus of what's going on, that they'll be the stars, instead of what's happening during this match.
Some are going to rage against it because they feel like it makes them some sort of edgy rebel that's raging against the machine that is WWE.
Some are going to rage against it because it may very well be the thing to do. As I've said before, the dueling Cena chants don't seem to genuinely represent the level of dislike the older male fans have for Cena. The "Lets Go Cena - Cena Sucks" chants are done by numerous fans. I've seen kids participate in the "Cena Sucks" part while I've seen grown men supporting the "Lets Go Cena" side of things. I don't think the chants are indicative of Cena being as genuinely unpopular as it seems because he merchandise sells too well and his segments draw too much on Raw each week. Some 75-80% of WWE's audience is made up of males 18-49 years of age, so if older fans really hated Cena that much, they certainly don't seem to be tuning out in droves whenever he's on their TV screens. I've sorta gotten off track as what I mean is that there are some fans who'll ridicule this match in attendance because it's what's expected to happen and it'll be the cool thing to do.
I'll be surprised, very pleasantly so, if the fans in attendance don't give this match a lot of crap. While it's possible to tune them out, a lot of that might depend on exactly how many give this match the business. There'll probably be anywhere from 65,000 to 75,000 people in attendance, which is somewhere around 3.5 to 4.2 times the size of the audience at the Royal Rumble and if even half that number start crapping all over this match, I don't see any real way to tune them out unless you mute the sound on your screen watching it on the WWE Network.