^ Well it's natural to see ayumi hamasaki or ayu as her, her band, her dancers, and her staff. Because that's what ayumi hamasaki is.
The woman is really hamasaki ayumi (or rather 浜崎歩).
But ayumi hamasaki is an artist, and artists have a lot of people behind them, some behind the scenes (her staff), some in the limelight with her (her dancers and her band).
I don't see any problem, plus this just reinforces what people say about how much power she has over her career.