Actually one of their guys approached me last time explainshell appeared on HN. I think he suggested I implement it as some sort of shortcut, but I haven't had time to look into it.
I have a branch somewhere that exposes the results as JSON, which should make it easy to integrate if they were interested.
I wonder if the developer of explainshell is reading. It looks like development has stalled. It's a really nice idea and could serve as a powerful backend for DDG.
Admittedly I haven't had a lot of time recently to improve explainshell. But I haven't deserted it; it's just a matter of finding a block of free days to focus on it.