here's a thing a lot of devs can probably relate with - ninjhax 2 (and etc) is excellent for homebrew to the point where you're probably not going to be able to find skilled devs who will help with downgrade-minded stuff. like you can get 124mb of ram and 2 cores running at 3x old3ds speed through a variety of unpatched entrypoints. besides some hbloader/libctru quirks that're being worked out (and that still apply to cia homebrew even), thats a very very solid homebrew environment.
anything beyond that is, in the eyes of a lot of people including me, basically just extra for piracy. i actually dont mean to start a piracy discussion (god knows ive seen enough), its just that thats the demeanor people familiar with the platform tend to have.
nintendo's like a good pal. publicizing stuff for the sake of piracy would feel like pushing that good pal down a really long flight of stairs.
tl;dr people who want a kernel exploit are jerks who like pushing people down stairs