I happened to be a numerologist by hobby, and my guess is this: it looks to be what happened to Fauna, being that she was stealthily terminated. Coco was the first one who was stealthily terminated by the way she was pushed out. Kanata, my guess being, was terminated stealthily due to restructuring within.

However, to play devil's advocate here, she did become deaf in one ear due to an ear issue that was caused by what she ate (the what she ate part is my guess, as I'm not a doctor). Some say that it was like Gura, since it was said Gura was lazy (that was proven to be a health issue preventing her from going forward, thus, upping her laziness).

Edit: I just started doing some numerology on it. It looks to me that she's been stealthily terminated, and her official termination date is the 27th of this year (after six years exactly). There are 11's in PPT and "Stealth Termination", though I also found some other numbers connected to her as well. I'll be back with more updates.

Edit 2: Holy spit.... yeah, she was humiliated into quitting from the looks of the numbers. She's definitely suspicious of having been ousted due to something that happened. She blew the whistle on a potential set of INFOSEC violations (NDA Violation = 71, just like Kanata's full name, both are in Reverse Full Reduction), and she's been pushed out because of it. From some more research using the numbers, she definitely has connections to Coco's stealth termination (they share a Rule of Colel value of 73). Also of note, the 72's in the numerology for this (it's insane how many) fit exactly the 72 months she'll have been in Hololive. This was a script for Kanata, and she had no clue about it.