Sorry to hear that! They are probably a) thinking it will be easier to clean so there's less to throw away and b) trying to save bedding costs. Would it help to show them this article about bedding and cage cleaning tips? Basically the more bedding you have in, the less you go through in the long run s you just "spot clean" the pee.
Tips on how to clean your hamster cage and avoid causing stress to your hamster. It's best to have plenty of depth of substrate and mainly spot clean your hamster cage. Avoid disturbing your hamster's nest and hoard.
www.thehamsterforum.com