beanburrito Sure taste is subjective. He's famous apparently. I didn't know him tho but that's because I don't care about Jpop except some AKB members (I'm more into Jrock/metal). Like you said, being famous helps a lot (like Trump haha).
Silent1 I read a bit of the article, I laughed when it was written that her post/account became a war zone between fans of the 2.
To be able to go "mainstream", the girls need some talent. Sora did it, and Yuma Asami is also doing it with music (Yuma's songs, for what I've seen on youtube, it's pretty catchy, I didn't except that at all).