I wouldn't say it's necessarily petty jealousy. In the offseason, three topics seem to come up quite frequently.
1. Athletes committing crimes.
2. The "enslavement" of college athletes and how poor they are because of regulations around being unable to work, requirements of their sport, etc..
3. How boosters are paying kids under the table or giving them special deals/treatment.
Then this story comes up about an alleged crime at the house where star players are residing, which from all appearances is very nice and not typical of a college student. This naturally will bring people to speculate on how they would be able to afford it. The point above about how much the housing costs in Lincoln vs Mpls are probably spot-on, but from the initial glance it appeared suspect. Also, these aren't the kids being investigated for the alleged rape, it happened at their house.