So... 100000€ because 19 cats, that shouldn't be there, drowned. Domestic cats are extinction agents, cat colonies need to disappear (not by drowning the cats, ideally in my mind they should go to a really big building just for them, I am a silly dreamer) and if the cats aren't feral, they should fine owners that let them roam outside. It's bad for the ecosystem, dangerous for the cat and even for their humans (zoonosis).
That money would be better spent taking cats off the street.
I don't find this uplifting at all.
Who use dermestid beetles as clean up crew? The usual beetle for that matter is Alphitobius diaperinus (or any tenebrionid), maybe dermestid beetles don't eat oothecas?
I have several tenebrionids, A. diaperinus are in my dubia roach bin because those roaches keep the ootheca inside, but I can't put any tenebrionid with my red runners because they lay the ootheca and the larvae could eat that.