yep, baby rabbits tend to sell very quickly as they are "cute" - and depending on the breed they will go even quicker. some breeds are always in high demand like lops and lionheads, often breeders can sell for extortionate prices for those. I remember seeing a breeder selling lionheads for £85, I couldn't wrap my head around it. mom and dad weren't show class winning rabbits, they weren't vaccinated already. but because lionheads are in demand, they go for a lot :? I'm not saying that they should be sold for dirt cheap, but that also seems expensive too. but too low price isn't great either - "ooh cute little baby for only £15, I'll take!" making the impulse buying more likely. (not saying impulse buying is bad).
its hard to see from pictures but perhaps there was hay around, perhaps there wasn't. I know my friend makes little set ups for her babies selling pictures. but most breeders do use shavings, I haven't seen one that hasn't if I'm honest.. probably because its cheap whereas the other beddings can be a lot more expensive. no excuse however, but for cheapness its probably done.
7 weeks is a bit too young, but I know my latest was separated from mom at 7 weeks for getting a bit too boisterous with his mom and sisters, including humping!! at roughly 4 weeks they are weaned I believe, the rest is spent with survival skills and learning how to be a bun.
I can't really judge too much - two of mine have been from a breeder. my first I made the mistake of not heading to a reputable one, but the second time I found a decent lady.]
I hope they have at least found decent homes!!