I've seen way too many people complimenting Billlie on their unique sound and concept and then giving credit to SM Entertainment like they deserve it when they have no involvment in the group.
Mystic is the company Billlie is under and they are responsible for the group,they are also an independent subsidiary of SME.
SM has a bunch of subsidiaries that all run independently and i've never seen people give them credit for all the "uncreative" or "generic" groups that came out of those subsidiaries like Lovelyz or Rocket Punch but one unique rookie this year and suddenly SM's responsible for them.
Just give credit where it's due and it's certainly not SM.
