With this squad, I think it might be injury related.
Tania Davis works really hard and can hit some clutch shots, but she looks at least a step slower than she has in the past. That's not particularly surprising given her two ACL injuries.
Last year Kathleen Doyle was the team's #2 scorer. There were a couple games when she went for 20 points and 10 assists and that combined with Megan's play was enough to will the team to wins. This year, she broke a bone in her hand in the pre-season and really hasn't looked like the same offensive threat aside from the Iowa State game.
Makenzie Meyer had a similar injury to Doyle last season, and went on a shooting slump once she got back from it. That slump has continued into this season, aside from a couple outlier games.
There are ways you could probably get away with it, such as guarding really close until the player made a move, then grabbing. In this case, she wasn't really guarding at all until they wanted the foul. It was really blatant.
I think it was more the coach was upset. Gustafson definitely got hit on the shot. It wasn't West Virginia's most egregious foul of the night, but still should've been called.