>>61230379Rushia ruffled too many feathers behind the scenes and was too retarded to live. Her minder took one weekend for themselves and that was too much for her. Rushia made too many enemies.
Coco was assailed by bugs on all sides to an extent that nobody expected. Years later and some of them still show up to harass her friends.
Gura is too passive to make enemies behind the scenes. Gura is not costing the company or her coworkers massive amounts of money or undue stress. The only problem with Gura is that she doesn't want to stream but the company wants her to. Gura doesn't want to be the face on EN but the company wants her to be. Having Gura graduate would be a huge blow to Hololive's image, so keeping her around with rare streams is how they settle.