I think it's ridiculous.
(1) Greyhawk is not great literature. It's a a grab-bag of fantasy ideas and D&D mechanical elements merged together on some adaptation of an old wargame club map.
(2) A commercial publisher like WotC will publish stuff it thinks will sell. If you don't like the stuff, you don't buy it.
(3) The setting has no independent existence. It can't be "blown up". Either you enjoy and make use of what they publish, or you don't.
In the 1990s I was using GH material that referred to the Horned Society taking over the Shield Lands (the City of GH boxed set) and other GH material that just ignored those events even though set later in the imaginary timeline (the post-GH Wars stuff). I just picked and chose what I wanted to use. It's not hard!