That's literally what UES is, the ability to harness either an internal pool of energy or borrow from an outside pool of energy that is spread throughout the cosmology to perform their feats weather it be supernatural abilities, control the elements, shoot energy blasts, or amplify their own physical characteristics. Yes, it's already covered that some have less flexible versions and others have more. And there does need evidence that physical stats are correlated to their energy manipulation and what not. That's already covered in the guidelines which includes consistent feats, lore statements, powerscaling, ect. There's a limit to how much redundancy needs to be asked and what not. It doesn't need to be that complex, if someone can utilize a mystical energy source to cause a big bang that creates the universe, and is equally capable of harnessing that energy into a single punch, it scales. And it also goes that some verses also do have explanations that a character is just as capable of amplifying their physical strength correlated to their energy displacement feats in general.
Again, these aren't uber strict rules, this isn't rocket science. These are just common standards that apply to a vast majority of verses. Of course, some verses are more down to earth with a lack of supernatural powers and heavily dependent on modern technologies for any powers. But there's too many verses that are in our faces that all forms of energy or even the ability to simply cancel out energy are correlated to translate in all directions to the point where arguing against it is the equivalent of attempting to argue that "2 + 2 =/= 4".
