As long as it remains an option among others, I don’t see any issue with the subscription model. I play video games for 20+ years, and I can say it’s impossible for me at this point to play once again to most of the games I played in the past. A subscription model is the cheapest way to play most games if you do not play it more than once (which is the case for most games, at least for myself).

Even in the rare case where I would like to play again a game I did not buy at the time, between discounts, remake / remaster (or even emulation), and even if I have to buy it 5 years after its release, it will still be worth it compared to the dozens of games I had not bought.

I am much more concerned about DLCs, season pass, bugged games on release and so on. Releasing incomplete or imperfect games (and this also count for BG3) implies that one day, using a physical copy of nowadays in 20 years will be a subpar experience because you won’t have access to any of this content by legal means (assuming Sony, Microsoft and Nintendo shutting down their online services for old generations, which has already happened and will likely happen again in the future). Retrogaming for games released nowadays is kind doomed if you do not follow the piracy route (which is probably the only secure way to keep track of both DLCs and patches in the long run).