Unmaintained filesystems as a threat vector

I'm not talking about Ted Ts'o or any specific kernel maintainer to actively start doing this, I know everyone is busy. What I would like is some openness to consider those things a real problem, and I think there's a blockage there. Ts'o, in particular, has been pretty vocal about this being unfixable and not part of the threat model, which I find frustrating.

Hell, if anything Google and Samsung would need this to keep hackers from doing jailbreaks on their phones eventually, won't they? :p