At the very least, the evicted Logan should’ve gone into some form of isolation for the remaining couple weeks of the season. As Vesna revealed in the chat (which isn’t necessarily new info, as it was already known here and in the circles at the time), it is all but confirmed that when David left, the advantage of them winning increased because he and his family took out a loan, and essentially began a voting farm in favour of Greg. That, and the extra publicity David was doing in the media by being out of the house, is ultimately what gave them both the win in the end.