The other very ugly, unfair truth….that mini is expected to suck it up and accept the equivalent of being abused.
No, no, no. You see - she gets to be Seven’s friend. It’s like, totally the best thing, like, ever.
Nevermind that this is a young, healthy filly who now - instead of living in a pasture with other healthy friends and a herd - gets to live in a small stall and small arena and small pasture with a strange horse that has no idea how to interact with other horses. 
Silver lining - she will get better nutrition and preventative care (farrier work, etc) that I think they likely get at the KVS BYB pen.