BCL: The purpose of the Minor Leagues is to develop players and allow for rehab of injured players for the Big Team. Hence the ever changing Rosters on Minor League Teams. ( almost daily movements/ in the case of the team I work for, the Round Rock Express, an active roster of 25 has seen over 40 different players come and go in 4 months! "You can't tell the players without a Scorecard!")
Major League teams could care less about the Win/Loss Records of their Farm Teams, that's only the passion of the Local Fans.
I get that. And in many cases the active roster of MLB teams goes through changes due to injury, trades, performance, etc. However, I'm not sure if in the long run it will help the minor league team. They had a successful 15-year partnership for over a decade with the A's, but then it became "Sorry - we're not interested in extending it". I'd been to games, and from what I could tell, it was a lot of fans of many MLB teams that are willing to attend minor league games.