Sure, it’s not feature-complete, but saying “it’s still not working properly” doesn’t really fit the bill here - they’ve satisfied the bulk of the demands of being able to have multiple accounts under one payee. Besides, they’ve said that this functionality will still be added (during another iteration). In the announcement post, they specifically said this is what they have now and it’s not completed yet.
It’s why it’s called an iteration.
Besides, I don’t think you can ever meet everyone’s needs, no matter what you implement.
That’s fair enough.
The “move on” strategy is quite common nowadays.
I’d rather get access to things when they “ready” (as in most basic form acceptable to users), rather than having to wait. It also allows them to get feedback early on, rather than launching something with a “Big Bang” and it potentially not meeting user needs.