I don't think subscriptions per se is that much of a problem, but for certain products I feel like there needs to be some kind of regulation mandating companies to enable some kind of self-hosted solution on the event they take their cloud down for whatever reason (including bankruptcy). If the product requires online servers, and the company is not willing/able to keep those servers online, anyone who has paid for t…
This isn't true for most things you "subscribe" to. If the gym closes down, they aren't required to provide a new location near you. If your office building gets demolished, there is no recourse. You just have to deal with it and sort out your own alternative.
Services are heavily incentivised to lock in their users with proprietary features, so that users can't easily migrate to a competitor. And that's what comes back to bite you when a service shuts down.
Of course, a regulation like the GP proposes would be difficult due to IP rights and third-party licensing. It's more that users should avoid services that lock them in.