Hmm.... I might be new to the MC Command Center but doesn't
"Population_DisableImmortalSims"
"Enabling these settings will make the Sims grow old and die normally rather than live forever and never die on particular categories of Sims who EA defaults to no aging. Values include “CL”-City Living Sims (Love Guru, City Repair, Weirdos, Busker Statues, etc.), “JH”-Jasmine Holiday, “GTW”-(Alien Pollinator, Criminals for the detective career), “SV”-(Nanny, Butler), “VMP”-Vampires."
Doesn't this setting mean that you can let the Alien Pollinator die of old age?