Can't be too pointless considering that both DC and Marvel have their own PnP systems.
Both of which suck. And would suck even harder as crgs.
To illustrate why they would suck so hard, take the endless Marvel Diablos clones. Lots of powers in there. But they have to dumb most of those powers down to make them fit the gameworld and action. Fly becomes hover. Ice sheet becomes contextual. Superstrong becomes contextual and +damage.
For fly to be meaningful, there has to be an Up to fly to. There is no Up in RPGs. For superspeed to be meaningful, battlefields have to be ginormous so you can do more than start/stop. For superstrong to be meaningful, the environment has to be destructible. For wall stickiness to be meaningful, you have to be able to climb to weird and unusual places. Etc.
Superpowers tend to work best remaining in the imagination, such as pnp or comic books give you, or as mmorpgs and 3rd person open world action games, where the player is free to use super powers as they will. Which is why there are an overabundance of 3rd person open world superhero action games, and almost no fixed combat versions, like RPGs.