It has been brought up before. The reason we have it in Island Sanctuary was because they felt it wouldn't work well in housing. The layout on the island allowed minion pathing to be fairly simple and (at the time) there was no furnishing placement to consider.

It would be very different inside of housing, Minions would constantly be walking through any furnishings placed. Players would need to convince SE they'll be okay with that instead of complaining that their pathing won't avoid placed furnishings.