Curious what you’re getting at here. Are you saying this is when B1g refs allow a lot of contact late in the season. Thus working against an offensive minded team like Iowa? Or is it that certain refs have issues with Fran, players, or staff? Not being a dick, seriously wondering.
Its a kind of complex syndrome. First, Iowa is an unimportant program from a financial perspective. We will be competing for NCAA spots with tOSU, Wisconsin, Purdue and Indiana. The league's money people prefer each of those teams over Iowa. So the league's not eager for Iowa to displace a more valuable program.
The officials can read the jerseys. They know who is supposed to win. Some of it's subconscious and some of its conscious but the more valuable, higher profile media teams get a significant officiating advantage over Iowa as we close down the stretch. The fact that there is little done to improve officiating, and its not just Iowa, is pretty strong evidence that the conference likes the results.
There is also an element that is specifically hostile to Iowa. It goes back a long time. Lute went absolutely wild at the truly hard to believe things that officials did to Iowa. The last three games of 1981 involved officiating that no one could watch and say Iowa was not targeted. That gave Iowa a bad relationship with the officials. Lute sent film to the office weekly but nothing really changed, berated the officials on the floor, etc... There's been a sort of institutional hostility ever since. Of course Fran, doesn't take a hosing lying down and that creates conflicts. Mike Eads is a perfect example of this problem. Not a bad official but absolutely hates Iowa. Almost every Iowa game features preposterous officiating from Eads that doesn't appear in his other games.
Although the officiating has deteriorated with the growth in legal sports betting it is still nothing like 35-40 years ago. The problem will never get fixed because, in the end, the status quo exists because its the most lucrative scenario.
Its the uphill battle that makes the Hawks so loveable.