I'm not sure what you mean but I don't watch enough bachelor to know what the producers look for. Other than not being book smart, the twins are smart enough to get along with the other girls (socially smart), have a sense of humor like in that vine, aren't insecure messes, and have so far been shown to be good people. They have their blonde moments but they're not shallow in character like the stereotype would sugest.
The twins seem very sweet when they aren't obsessing over Olivia. My understanding of them is that they aren't as mature as the other girls, but they will get there.