I hope the hot-springs people who submitted gets banned and slapped with harsh penalties (if possible to enforce despite already banning them). Because this was a very dangerous manipulation of the request system, trying to get a much cheaper request in exchange for making the lied-to guild throw unprepared and likely weak bodies at the problem exchanging lives for success.
Even if that colony slime was a recent thing that appeared after the quest was submitted, they should have been banned already when a "cleaning request" was in fact a "subjugation request". Because 6-year old's with brooms and such, are very much not what you want being fooled into fighting tons of (even if they are weak) slimes. Hell, the fact that slimes corrode stuff means it would likely end up a huge loss for those slum orphans that had to resort to accept that quest, as the compensation doesn't match.
Horrible people all around in that hot-spring company. Particularly that woman who went all "I know you are here for cleaning, but it was secretly a subjugation quest. That's fine right? Oh, and the target is a massive mid-ranked monster (who is so dangerous it even resulted in an emergency quest) this time, but that doesn't matter yeah? Now take your broom and unarmored self and get to cleaning!"