I think it good to be hyper cynical. That is, if there is a system that can be taken over / infultrated / censored / etc and that system has massive value (or negative value to some other parties) it's good to assume there WILL be people trying to do these things.
Thus, systems should be built resiliently in ways that mitigate these threats. Even if the cynicism is undue, it's beneficial to have such a system.
So far, I don't know that the Bitcoin software has been manipulated like that (I suppose some would disagree). The system has to be accepted by the world-wide set of nodes, so that is a massive mitigation itself. However, it would be beneficial to have a different process for the code.
Nostr / Bitcoin-core seems like could be a match made in heaven for this purpose.