Her tweets werenot about Ed Sheeran. She referenced "the skinny girls" and discussed a choreography nomination Ed Sheeren did not get. It was a direct reference to either Taylor or Queen B, and she wasn't calling out Bey, obviously. Any other interpretation is intellectually dishonest and an attempt to shoehorn someone else's beef into Minaj's comments.
And again, this is the VMAs we are talking about. The ESPYs think this is utterly meaningless.