Their concern seems to be about the size of a potential audience as, from general indication, the audience on 3.0.0 or in general compromised hardware is paltry at best (to the point where I didn't even see Pokken make a blip on the radar on usual channels I'd have expected when full Rohan went live and the new broke, suggesting that the general interest or awareness is very low). It would be a good investment for the future but with no timetable on such a thing and a very small audience to work with, it appears that some part of the crew finds it a poor investment of time at the moment.
Daekan retiring probably also dampers spirits.
One big doorway does possibly remain with plutoo's unknown kernel exploit as we have no clear confirmation on its fw but right now he's using that kernel exploit to help build userland tools, so who knows when he'd release it or if he even will.