WP is one of the few communities I've seen that has these branded conferences on the scale they are at. That, combined with the Foundation having it's own restrictions (being a 503c makes some things different than a normal for-profit enterprise) makes a WordCamp be a specific type of event. And that's totally OK.

There is *nothing* preventing people from doing their own thing and incorporating WP in some capacity, whether it's specific tracks or otherwise. Personally, I find most camps now don't have the depth of advanced developer focused topics I'd want, but that's because they want to appeal to users as much as developers. So I'd be well served attending conferences outside of official WordCamps to expand my skill set. This isn't the fault of WordCamps, nor is it an issue that even needs to be addressed. It's called choice.