During the many centuries that magic, here on this planet, was presumed to have worked, there were at least as many theories as to how magic worked as there were cultures and religions.
Editors of open anthologies actively seek submissions from all comers, established and unknown. They are willing to read whatever the tide washes up at their feet.
I do have a small collection of traditional SF ideas which I've never been able to sell. I'm known as a fantasy writer and neither my agent nor my editors want to risk my brand by jumping genre.
I'm a writer first and an editor second... or maybe third or even fourth. Successful editing requires a very specific set of skills, and I don't claim to have all of them at my command.