Countering Storm with Rhino is satisfying, but the exception. Countering all the other annoying locations is much more useful. And if you’re pulling off a double Surfer, you usually don’t need Storm’s help to win your Brood lane. Rhino can also help on any turn, Storm needs you to know you’ve got the follow-up in hand, and if you can’t play her until turn six she’s just effectively a Rhino at that point anyway. I can see your argument, but Rhino “feels” more consistent.