>>107532643Personally for me the worst interpretation is Cover wanted her out because her "aesthetics" or ideals is too strict for them or their vision (difference in direction ironically).
It's no secret that Cover has tried times and times again to appeal to wider audiences with HLZNTL, NijiHolo projects, Twitch, etc which directly works against Kanata's brand of ideals.
Kanata herself alluded to the possibility of this sentiment in her mengen, saying that she feels she's very hard to work with and even considered modifying her "ideals" a few years ago. I'm not blaming her for considering that though since having too strict of an ideal means that you're competing to even a smaller pool of experienced/knowledgeable managers that now she ends up with someone that does 3 holos.
The "best" interpretation assumes that Kanata did hide her worsening ear condition and Cover knows that rather than have her be eventually deaf its wiser to let her end her activites now if she wishes to. They tried to suggest her to reduce her activities to something more sustainable after she had her consultation with the doctor, but she rather not to since her time on stage is limited anyway.