Now...let’s talk reality. Thousands of people (perhaps hundreds of thousands or even millions) install these betas on their primary devices. As you note, should they? No, particularly if they can’t get back to a regular release. But they do. And Apple knows they do. That’s my point. Once you make it available to the public, even with strong caveats, the calculus changes.
Should it have to? No. People should heed the warnings and live with the consequences. But that’s in an ideal world, not this lawsuit happy world in which we live.
These are the costs to Apple of having a public beta program. They have to consider what the public might actually do, not what they should do.