I don't know of anyone with an anti-McGhee agenda, but I do know a many with a big pro-Aberdeen agenda, who think that the best thing for AFC is to part company with McGhee.
I really don't see the point in keeping him on to get humped by the Huns, be just as well to put a temperary manager in charge for that game - hopefully get a bit more from the players, and the result wouldn't matter too much.