I am 100% convinced that if the money is good, the Rock will take on literally any role. Rampage, which is based on the 80’s arcade game with the same name, is a perfect example. Most actors of his level of fame wouldn’t dare get anywhere near a role like this, as the chances of it doing well are slim. Johnson basically said “hold my beer, watch this…”
It is true that Dwayne Johnson’s acting has drastically improved since his WWE days, and he’s had a decent track record lately with making magic happen with whatever movie he’s in (with the exception of Baywatch maybe).
I played Rampage quite a bit as a kid, so this definitely has some nostalgia factor that might also make it easier to overlook its inevitable flaws. In a time where most games had you play as a hero, Rampage gave you the choice between 3 monsters and then set you loose to destroy a city. For a movie based on this type of game, the story seems to make as much sense as it possibly could: science.
The bottom line is: this will not be a cinema masterpiece…not even close. What it does look like is a ridiculously entertaining popcorn flick that not only acknowledges it’s absurdity (“of course the wolf has wings”), but flaunts it while having a good time, that Dwayne Johnson is an expert at providing. He is the modern day action hero.