This is untenable going forward if the industry continues to have a rising cost curve. Raph Koster's discussion of game cost is a good overview of what's happening and the challenges that result from it.
The step towards an NFT market begins with the creation of viable transfer mediums - assets not optimized towards particular games but with a reasonable degree of retargetability. The market for modding and independent asset creation then writes to that format and some games start to subscribe to it, enacting a "Multiverse". At that point opting in to an NFT market and allowing trade across games becomes a viable way to offer new experiences at lower cost, and the tokens themselves are meaningful for the same reasons that existing microtransaction tokens are - use value in-game, ability to "flex", but probably not an in-game advantage(unless we go full "Barcode Battler" and manufacture a randomized meaning from the token).
This isn't hypothetical - ESPA/Digitalax is an example of an attempt to make this market. It's pre-launch with a lot of unanswered elements on the technology side of things - I doubt the format that they currently propose - but the concept otherwise makes sense, and it's possible to pivot, aim lower, and not go for universal formats right off the bat.