I don't think it's a correct formulation. The idea that this gesture was not a mistake is just the consensus. Here or everywhere else. Of course, "official" entities (like companies or official instance) will not openly take a position because it can hurt them. But it is just "politically correct" to avoid being clear on the subject, while the large majority, unofficially, know what happened.
Strangely, you seems to both saying that "political discussions should not happen here" and saying "people have political discussions and build their opinion also outside of HN, so if they present their opinion without redoing here the whole discussion, it is not valid". If people had discussions elsewhere and reached a conclusion, the fact that they share a consensus here does not mean that this consensus is a dogma.