I'm likewise pretty surprised that this made it to the top of HN. If you want straightforward, technical announcements, watch https://hacks.mozilla.org/ instead of https://blog.mozilla.org. The latter is predominantly press releases and less-technical announcements.

Not that those things are bad, they're just meant for a different audience.

If you want more moonshot-y stuff, emscripten, asm.js, rust, and servo are all pretty worthy of your attention. :)