Also I noticed that this selection dialog appears twice, before and after login, at least when using nsec.
Also strike where I said "after the login stage", I meant "after app use", like 5 minutes after login, for example.
Discussion
I agree with most of what you’re saying. I do, however, think that the role is relays for the average user is still an open question. It may end up the case that they become a basic user interface element.