Which is fine, users will then pay a company to do that for them.
I guess we will have some import/export feature at some point.
Yes, indeed, but moving to a different POD does not necessarily mean that you need to change the URL. Ideally, you would keep the same URL. Millions of website move from one hosting service to the other every day, without breaking urls that have been in use for years. This is not different from PODs.