A lot of games are already nearly impossible to preserve because they use DRM and anti-cheat systems that only a handful of people in the world could crack. Maybe in the future more people will learn, but I think it's more likely the opposite will happen and these people will be fully outcompeted by DRM providers.
I wish there was a way to prevent this, but I don't see it. You would have to outlaw SaaS in general. I mean, that sounds like utopia to me, but there's no chance any country would go for it.