I think they're entertaining, albeit a bit one note. That's fine though. Booking is the key issue with the belts and has been since their creation. I wish they'd capitalize on the rule they made during Bayley and Sasha's fledgling run where the champions could show up on other brands, be it main roster or an NXT. I think there's more room for them on the secondary brands to grow since the secondary brands do strangely focus on women in tandems quite a bit. You have the Horsewomen, you have Vanessa Bourne and Aliyah, Io and Candice, Jazzy and Jinny. Who does the main roster really have? Mandy & Sonya? A half-cooked version of Sky Pirates with Kairi and Asuka? The horrendous duo of Tamina and Nia? the tenuous duo of Alexa and Nikki? I mean, they've pretty much broken up Riott Squad just in time for them to do something with these belts, so yeah. The division needs both work and scope.
Do I mind Billie and Payton losing? not really. Their gimmick is kind of out of their depth heels who cheat to win, so they don't really have to look legitimate as competitors.