Her music aspirations are intertwined with hololive, the "hololive isn't important to calli" angle that saying she treats it as "less than a hobby" implies has always been retarded and required actually ignoring what she's saying and doing.
She's on her music grind and her music goes through Hololive. Her slowing down on streaming Is pushed as well by her hololive manager Jchad who she's openly talked about pushing back against to stream more often than they want her to since getting signed. (Jchad pushed for only 2 streams a week, Calli pushed back for 3 + 1 more if it's a collab)