Around 3 mins in Shanann says: "I'm definitely the dominant one in the relationship"
I hope you don't mind me jumping off your post to say something. I think there's a big difference between a dominant partner and a domineering partner. Maybe there's some confusion going on here as some posters might be using 'dominant' when they're really describing what I'd think is more 'domineering'.
I do think Shanann comes across as a bit more dominant in the videos, but I wouldn't say CW comes across as wholly submissive or that Shanann comes across as particularly domineering.
Some people prefer a partner who's a bit more dominant in attitude than they are, it can work well as an attraction of opposites and they can complement each other. Some people prefer to be with someone who'll decide to take care of paying bills or deciding which restaurant to eat out at instead of someone who's always asking them to make the decisions. But Shanann seemed aware and respecting of his likes and dislikes, she doesn't seem to be like a bulldozer personality.