I wouldn't call it an "Apple PR centre". Most of the Apple related submissions recently are of critical nature (e.g. antenna issues, restrictions of the iPhone SDK). I agree, sometimes the Apple related share of stories on the front page is overwhelming, but you should also consider how many startups/developers depend on things happening around Apple.

For me it's not about getting the Apple news from HN, but following the (high level) discussions about them.

Most news can be received from various outlets. It's the context that matters; I enjoy discussing about Apple-related news here with my peers.