it's grossly not enough to be able to change your relays
using hubs relays masquerades the fact that clients are wildly still not good enough to find events where they should and that if you are not publishing in a centralized relay you are a second-class citizen
it doesn't even require malice from the relay operators, sheer scale would crash nostr if "just add X and Y relay and use blastr just to be sure" is how we scale