Well, like already stated, it's not a hard requirement. The page clearly states:
KEEP IN MIND THAT THESE ARE NOT STRICT, MANDATORY RULES TO QUALIFY A UNIVERSAL ENERGY SOURCE FOR SCALING TO PHYSICALS, BUT RATHER THEY ARE MERELY A SET OF GUIDELINES TO HELP ONE PROVE SO.
You really should write the page different in that regard. Stating a bunch of rules and then saying "but none of these rules really apply" doesn't help anyone. There should be a clear distinction between necessary requirements, sufficient requirements and supportive requirements. If the only sufficient requirement is having at least several supportive ones that should also be stated.
But that are fundamentally just design issues, I suppose. If it's just that a certain amount of restructuring of the page would be enough.
Also, could you elaborate a bit further on what you mean by this? Because from what I've seen, usually if they're shown/stated to utilize/use the same power source/s that’s explicitly proven to be part of one’s strength, then it would be much easier to explain why it would scale to their power, and it not either being a specific ability or that it wouldn't scale to physical strength unless specific circumstances come into play or are mentioned.
My point is that these requirements support the idea of it being "universal", but not the idea of supernatural powers scaling to physicals which is what is actually of interest to us.
What the page suggests is that "Needs to explicitly be a common source of power within the verse" is a necessary or at least supportive criteria for the scaling of supernatural feats to physical strength. However, there is just no correlation here.
You can have an entire verse of people with a power system that doesn't allow for scaling supernatural feats to physical strength. On the other hand, you can have a single human with magic, for which the magic power scales to physical strength.
There is no reason to believe that lots of people in a verse using the same type of power system raises the probability of it scaling to physical feats in the slightest.
For the question of whether or not supernatural feats scale to physical strength, it is neither supportive nor necessary.
The same goes for relevance for the verses lore. Magic that doesn't scale to physical can be very important to a verse's lore (e.g. Harry Potter), while magic that does scale to physicals could be nearly irrelevant. Tie into the verse's lore doesn't support scaling.
What could support scaling would be knowledge of the mechanics of the supernatural power we are talking about, as one could maybe tell based on those whether physicals scale or not. However, mechanics and lore aren't equivalent and then it depends on what the mechanics state if it is relevant to scaling supernatural powers to physicals.
Now, you said "if they're shown/stated to utilize/use the same power source/s that's explicitely proven to be part of one’s strength, then it would be much easier to explain why it would scale to their power", however that isn't something iplied by lots of people using it nor is it something contradicted by a person using more than one kind of power.