There is no information transfer in your black hole example. Entanglement can not be used for FTL communication no matter the interpretation you choose. As for

There is no information transfer in your black hole example. Entanglement can not be used for FTL communication no matter the interpretation you choose. As for why pilot wave theory is not popular: it generalises poorly. Sure, you can build a multi-particle theory or even field theory on top of it, but they are clumsy to work with and after their initial study they did not show any promising way forward that was not available to the typical approach to quantum mechanics. Edit: Wiki article about why entanglement does not provide FTL communication even if naively it looks like it should be possible https://en.m.wikipedia.org/wiki/No-communication_theorem https://en.m.wikipedia.org/wiki/No-communication_theorem