I feel like, for at least young people in Japan, they know about her but don't really like..want to talk about her, maybe? While I was in Japan I met a college student who I talked about music with, I told her I liked Shiina Ringo, and her reaction was just something like "uh huh". Like the knew who she was but had nothing to say. It felt like she'd heard of her but didn't really know what was up with her, what she was doing now, or just didn't care
It seems like boy bands are the biggest thing right now, people are more concerned with the attractiveness of the singers than about lyrical complexity