More fouls means more trips to the line for one of the best free throw shooting teams in the country. If teams back off and play by the rules, resulting in fewer fouls, then a team that wants to get out an run has the freedom to do so. If you can't see how the rules help Iowa more than MOST teams (especially within what's been a very physical conference), then you're just trolling.
As for making up for lack of athleticism, Iowa plays a fair amount of zone and does a great job of closing out on shooters while doing that. No one will confuse Iowa with Syracuse, but their zone defense is pretty salty.
White does most of his flopping on offense to get to the line (few players do that more often, or more effectively, than White, I'll give you that). Wisconsin flops on defense all the time, and that's going to be a tougher call to get this year.