Rose simply doesn't give a shit. She has a really good team representing her and they did as well as they could with the Thug Diaries. They even paid to have it as a promoted video on YouTube! But when your feminine-looking, marketable fighter shaves her head and (as was already pointed out) posts about twice a month on social media, it's tough to get any steam behind her.
For example: Before Rose and Michelle fought, Rose had twice as many followers on Instagram as Michelle. Which makes sense, considering she has always been a top 5 fighter, fought for the belt, was going to be "The next Ronda Rousey" and got a lot of push by the UFC. But look at their Instagram accounts NOW, after Rose BEAT Michelle. Waterson has a lot more followers. Similar thing happened with Paige.
Once again, Rose is a hippie out there doing her own thing who happens to be a good fighter. People around her care about the money and popularity, but she obviously has a hard time giving a shit.