Just because the author wants it to be run a certain way doesn't mean that it should. If he doesn't like how it's done and thinks that issues that he believes are important should be discussed, he should make his own news aggregator site, instead of trying to hijack an already-established site for his own agenda.
If the majority start disagreeing with the curation of HN articles, then they will leave to other places, like reddit. And frankly, I'm not sure that pg even cares if this happens, he didn't start HN to increase his popularity or his influence.