Bid question

[Blainers]

A very dear family friend’s daughter recently went through rush at a small Liberal Arts college. There are only four sororities. She received a preference invitation to two of the four, one of which was her first choice. After the parties she decided she would not be happy in the second sorority, so she did an ISP for her first choice. She ended up not getting a bid. When I was in school we were always told when voting for our pref party invites that this was a membership bid, and anyone we invited would be placed on our bid list, though we, of course, never knew where the person fell on the list- first, last, or somewhere in between. Is this still the case? Her sorority of choice did not make quota. So if she was indeed on the bid list shouldn’t she have gotten in? I know for a fact they did not make quota, and they even offered a snap bid to a girl who hasn’t even gone to their pref party. Just trying to figure out the semantics of the situation as my friend is struggling to come to terms with the way things played out.