What you're describing isn't uploading the game, then, but uploading a stub with a transclusion of the game. I'm not the same commenter, but surely that doesn't answer (what I see as) most of the implications of the original question?
Vendor lock-in with a monthly subscription where the price can change at any moment or the company may disappear along with your product. I wouldn't build my business on that.
Okay, in that case you can upload a stub with a transclusion of the game. If there is enough demand I would definitely work on a standalone export system!