Sorry, it's not elitist to point out that GH is not great literature. It's a hodgepodge setting for FRPGing.
And nothing is being "manipulated".
I have a shelf of GH material: Folio, Boxed Set, City of GH Boxed Set, FtA Boxed Set, The Adventure Begins, Living GH, plus various modules from classic A&D and 2nd ed AD&D. Nothing that WotC does this year will change any of that stuff.
My current Torchbearer game and current Burning Wheel game both use GH as their setting (the area around Tenh, the Pale and the Bandit Kingdoms for Torchbearer; Hardby and environs for BW). I use what I need and ignore what I don't - eg in our TB game Burne (a NPC from T1 Village of Hommlet) is the wizard of the Wizard's Tower on the Bluff Hills; the Forgotten Temple Complex in the foothills of the Griff Mountains adjacent to the Troll Fens (placed there by a player as part of PC build) is modelled on the Temple of Elemental Evil; the Moathouse is in the Troll Fens with Nulb a Remote Village on the south-east border of the Fens.
These published settings are for game play. Not for admiring as exhibitions.