I hope more developers allow themselves to indulge in this feature. There are all sorts of use cases where the customer might want to play on an old version of the game. For instance, there have been some controversial patches lately to several Arc System Works fighting games, and players would very much love the ability to stay on the old version. I doubt it’ll happen though, since the devs have an incentive to want as many players as possible to be on the new version.
Some use the beta branch feature for this but hopefully an official feature makes this more widespread - especially for those games with their big modding communities. I’d rather update the game a bit later when all the important mods also have caught up.