This is a very interesting discussion to me. I'm still on the fence about the idea of putting links in API formats. For HTML that works of course, because we understand contexts and meanings. Usually. But libraries have a harder time doing this and semantics only goes so far.
Another short term problem I would see is adoption of this on the API provider side. That's of course something a well coordinated initiative would take care of.
I'm looking forward to seeing where this goes and learning more about it.
I haven't been following those discussions very closely, so I'd love to hear more. It's not clear to me where that hypermedia approach might take us, as a community. My first impression is that this feels like an approach that requires more upfront buy-in from the API providers, and puts a fair bit of burden on all the clients.
Another short term problem I would see is adoption of this on the API provider side. That's of course something a well coordinated initiative would take care of.
I'm looking forward to seeing where this goes and learning more about it.