Makes sense! You'll notice with many species that if you give them too large of a habitat or there aren't many roaches to begin with, reproduction can be very slow. Sometimes the colony will even die off. Probably why the initial start up of a colony can take some patience, but then once they start having nymphs things speed up and you often end up with an overflow of roaches.
I can't wait to see my neighbors faces as I walk back and forth to my garage with duck feathers and spend an hour stroking inside a bin. I think that might tip me past the point of eccentric on the scale.