i see it like this repliweir gets them and converts them into her new collective
but theres always a chance that some will become active through other means :
found and experimented on by someone how loses control
get the new code for contraction but cant explode due to their small mass
breaking away from repliweir and the new collective somehow if they intend to use those cells
and many more ....
just a thought i had tonight
what do you think?