> Phones are computers now

No one but irrelevant nerds think this. And the market has demonstrated this time and time again.

Most people think of phones as being console-like entertainment devices. And aren't interested in scams, malware, virus checkers etc that are needed in a free for all model.

I don't believe this can be done whilst maintaining a strong sandbox.

Apple will never do this voluntarily.

My immediate interpretation of "direct relationship" is one part "we want your email to send you marketing spam" and one part "we want to add as much friction as possible to cancellations".