To be omnipotent, one must be capable of giving oneself perfect ability. It doesn't require that one must have perfect ability.

A being that is all-powerful despite having a disability must truly be more powerful than a being that doesn't have that limitation. In fact, the being that is all-powerful despite having the most limitations must be the most allest-powerfulest of all.

This is just the semantic word games you get with terms like "all-powerful". I've never cared for arguing about the term, because it's ill-defined 🤷