Generally, I *am* excited about Phase 4. It's a good mix of bringing back what were (largely) supporting characters as leads, of introducing new characters, and of a good movie/miniseries balance to help kick off Disney+.
I think it might have had more weight if GotG3 hadn't been delayed - I suspect that led to a few other projects being pushed out as well - but five movies and five new series is certainly enough to be getting on with. And I agree that Marvel have earned enough trust that we can afford to be optimistic.
(My comment about the politicization of casting in film for box-office gain was not a comment about Phase 4, specifically.)