1. The song pitch is too high for suis. Not mean to underestimate her, but it's not like suis usually did 2. This video was uploaded just few months ago and not uploaded by official channel. 3. I think, some vibrations and how to get high note are not suis style. . But i'm not really sure, i am just doubting. In many parts it's really like suis voice, if it was uploaded four years ago i would not doubt it at all.
@@snowfluke if it's AI there would be a cover similar with it for the base, yet there's no such cover as beautiful as this. and mostly this is not miku's style of singing