The reason we don't see any articles about voltage regulation algorithms or leak testing of lithium batteries is that people who would read such articles are rare. They might get some interest in niche sites like Hacker News, but Tesla wants to move towards mainstream acceptance and for that to happen they need articles on subjects regular people can understand and relate to, such as how Tesla is doing in relation to other manufacturers.

This is not to say that such articles are uninteresting for hackers. Many of us here root for Tesla, not only because Elon Musk is one of us but also because the technology his cars use is useful and cool. That is why you see these articles on the front page.