People have bought into the rock hype primarily because of the amount of blockbusters hes in but honestly most of his movies are not good and they are usually ensemble efforts. Saying he's the reason for the success is minimizing things
The minute he tries to do his own thing like with Hobbs and shaw or rampage the success isn't there compared his bigger movies
Now with this you have an untested DC character and essentially a fan casting from years ago
Shazam is literally the only character that has every reason to be in the movie and isn't
A lot is riding on this black Adam movie imo
Even more so than Flash