It's super sad considering the new stream of users of all levels, but energy is spent at the higher layers (emacs config, org tricks) rather than core..
As active as you are in the Emacs community, you ought to know that there is a steady stream of commits to "core." Anyway, if that's not enough for you, maybe you could allocate some of your own manpower to fixing those bugs.
This is probably because it is relatively easy to add more elisp flourishes, another seven major modes for editing JavaScript, much harder to actually improve the core.
