I agree Rock was a pop culture phenomenon, there’s no doubt. When it came to acting though, there had NEVER been a wrestler who had made it and a fair share of the population thought he’d end up a b grade action star. It’s not a slight on The Rock at all, it’s just that nobody had kicked in the doors like he had before - there was no benchmark.
In that time period Vin Diesel was one of the hottest stars in the world and had made NUMEROUS hit movies. Rock was compared to him initially because Vin was the benchmark.
Rock is one of the biggest stars in the world now, but I bet if you asked him, he’d tell you himself that he started from the bottom in the acting world too.