Vision = powerbank, charges ambiently

Gnosis = invisible PoE cabled directly into elemental realm.

That's how I see it.

You'll need to first be aware of what Ei's "pass" requirements were before you can understand why her attempt "failed".

Perhaps we can frame things from a slightly different angle -

Let's say entity A can do incomprehensible damage with a single blast of power, but ultimately the impact is a local one and it probably can't be done often.

Entity B however has a non-destructive ability that is world spanning, potentially impacting countless things on a global scale, and can sustain it indefinitely.

Who do you think is more powerful and godlike?