Is it really a problem though? When I submit a post I usually spend a little time voting on other submissions in the new queue. I'd guess that's a pretty common mode of usage.
My own submissions and the ones I see when voting on new seem to land on the front page in rough proportion to their quality.
I see more political (in some sense) posts than I really want, and not enough super-duper technical stuff - but I don't really get the impression that that arises from a lack of attention in voting stuff onto the front page.
I don't see it as a problem either. I visit HN a few times a day, when i need a break from work and want to avoid descending into the dark Twitter rabbit hole, and usually check out and vote on a couple of articles in the new links queue.
Only difference is that i come less for the technical stuff — i'm not a developer — and more for the (usually) intelligent discussions, which sometimes lead me to even better stories.
My own submissions and the ones I see when voting on new seem to land on the front page in rough proportion to their quality.
I see more political (in some sense) posts than I really want, and not enough super-duper technical stuff - but I don't really get the impression that that arises from a lack of attention in voting stuff onto the front page.