Individual espers, probably. Platinum Wings, creating entirely new branch of supernatural power for the world, stuff? Debatable.
But that's not exactly the point anyway, as we aren't debating Accel vs a power cosmic.
Point was that Magneto blocking power cosmic reality warping with his EM field (honestly what bs were the writers on when they accepted that as solution) doesn't exempt his EM stuff from Accels vector shield. His EM fields aren't in themselves reality warping of a power cosmic's nature, after all.
It kinda does since nothing stated there fits what Magneto blocked.

Power Cosmic
To wield the Power Cosmic is to be in touch with every other living thing at once. It is to recognize that we aren't alone in the Universe... we alone are the Universe. We are the cosmos coming to know itself, to love itself... and when you witness that for even the briefest of moments, you will...
The Power Cosmic is the name of a vast source of limitless, godly, cosmic energy and power primarily wielded by the god-like cosmic entity Galactus. The Power Cosmic allows Galactus to employ the available absorbed cosmic energies within him to produce nearly any effect he desires, including size-alteration, the molecular restructuring and transmutation of matter, the teleportation of objects—even entire galaxies—across space and time, the creation of force fields, the creation of interdimensional portals, telepathy, telekinesis, and cosmic awareness on a universal scale. Galactus has even been shown as capable of creating sentient life, resurrecting the dead, manipulating mortal souls and remaking dead worlds—including their populations—in every detail.
Platinum Wings Accelerator only really gamed the system and not to the outrageous extent you are making it to be. Galactus's Power Cosmic completely and utterly bends Reality on it's very whims and allows him to do virtually anything he wants right down to bringing back people, planets and otherwise in 100% detail as if nothing ever happened.
It's not remotely close the same.