I actually love that I can hear her. But you're right, they're super chill, from what I've heard, they don't have a culture of singing along and screaming in concerts
Dang I just started listening to her this year and her style around the first couple years she started doing concerts seemed so much different compared to now.
Anyone annoyed by the respectful crowd, please understand that this is a culturally common thing in Japan, that is actually let the artists do their show and enjoy it while not screaming and going crazy.