I happened to find a copy of "The Golden Turkey Awards" at a library book sale a little while back, although in finding it I did remember seeing a bit of criticism of the Medved's books, more or less seeming to boil down to "they're mean-spirited and laugh at the misfortune of others," and most of it seeming to come from fans of 1950s SF B-movies... An article in Time magazine on Mystery Science Theater 3000 once specifically stated it "went beyond the Golden Turkeys," in a good way of course. However, I've also managed to see a few criticisms of the show along the same lines, most of it seeming to date from the early years of the show. (One of those articles was a target of one of the first MSTings (http://groups.google.ca/group/alt.tv.mst3k/msg/5a6c6eed9380619f?dmode=source), although to me it perhaps wasn't as funny as it could have been.)

Just as another note, Mystery Science Theater did indeed mention (http://www.highspeedplus.com/~dascott/tmi321.htm#piasgg) Pia's Golden Globe in the "riffing" of "Santa Claus Conquers the Martians..."