I agree there's a lot of problems with unpaid internships and work and such, but I don't think this is that bad?
It feels like "hey, if you really like our product and want to show it off, we can send you information and merch, and put you in touch with higher ups."
I'd complain if Microsoft or Google started doing this, because they are huge megacorps with deep pockets, but Framework seems like a small company that can't really afford huge marketing departments. If people want to devote their time to a cause they beleive in, more power to them.
They also aren't doing it with the promise or threat of something, which is an issue with a lot of unpaid work. The people they're targeting know exactly what they are getting into, and that they are doing it for their own reasons.