To be honest, I don't really mind him calling Hersherr of Void "Sirin", guys. I mean, the Kiana we knew was always Sirin anyways. It's just that, her life as Kiana was her redemption arc, and she delivered. Like, me and brother always call her Sirin. But we always call Bianca Bianca too. Because to us, they both are Kianas. We kinda dubbed them as "Sirin Kiana Kaslana" and "Bianca Kiana Kaslana"-- making the name "Kiana" their middlename since they're both Kiana.
It's been a popular theory that Mihoyo had developed a music studio alongside of their games throughout the years. The music studio is one of the most successful elements in their games, giving life and soul to Honkai 1, 2, 3, Genshin and Honkai Star Rail. Yu Pengchen, the lead composer left the studio earlier this year tho. His departure deeply saddens the fans-- as it is akin to Doctor Who losing Murray Gold as its main music composer.