if all furry stuff had to be firmly based on actual animal anatomy, the furry community wouldn't exist
Considering there
are furries that do abide by anatomy and some don't, I don't think the furry fans would be completely hindered by rabbits not having dog feet all the time. :U (It's a pet peeve even, I think I see more digitigrade rabbits than plantigrade because people forget/don't know they don't have those features despite being a popular animal type. Laquines in TiTS at least have the excuse of having an equine foot joint to be able to do both stances)
There's also an appeal people miss with fluffy rabbit paws, more tactile stuff you can work with there as opposed to just resorting to "toe beans all the time" since it's very soft plushy fluff you can stroke, tease, and tickle a dick with instead of skin.