I'm not a shill bidding conspiracy theorist on the regular, but it looks like there may have been some shilling bidding around the 2100 dollar bids, up to the 3400 dollar bids, though in the end, the winner and the runners up appear to be organic bidders. But regardless, that book does come close to a 9.0, under any circumstances.
The thing about 94, and how in the end it might be a tougher grade than a GSX 1, is that cover, properly colored, is unforgiving in terms of spine breaks, ticks, and wear. The squarebound nature of the binding of the GSX 1 saved alot of those imperfections that you can't skate by with the 94 (this doesnt take into the horribly pressed GSX 1s which some person_without_enough_empathy made into a regular bound book).