What everyone calls a modern offense is basically hitting 3s. It doesn't matter what the teams run to do it. If a team hits 10 threes in transition or quick hits and never even run a half court set people here still call it a modern offense.
Offense is fairly homogenized with everyone running the same shit. IU runs modern actions to get the ball inside. It doesn't run many actions with emphasis on getting 3s up. Baseline pin downs and double drags, and sometimes high post staggered screens to free Mack up, is about it.
The offense is modern, the emphasis of where it wants to get the shot, is not.