Dunno; I don't have any apple devices. Might ask a coworker to try to repro it on monday. :P
(I suspect that recursive makes do enough compute in between invocations to slow down and avoid this bug. If the OS was dying in everyday compile jobs it'd be much bigger news.)
EDIT: I think that I might've misread this - it might be that spawning processes pushes htop through codepaths that can cause the bug. So it's more like "a malicious app could kill your system the instant you open htop". In which case, yes, a recursive make while you have htop would would do it. Rather less significant.
When I read the headline I didn't think I had run into this bug. Now I remember my OS freezing twice when quickly opening and closing some chrome tabs.