There's just so much entitlement surrounding Joss, because of who her mother is, and what that is meant to mean for how we see her. Very unearned. Has Joss ever had a story, or a pairing, or any relationship, that most viewers responded to? I know many of her fans hate Trina and want Trina off the show, but nothing is going to change when Trina leaves (which presumably won't be long), because she is so vacuous.
Even Bill Bell, nepo king, was not threatened by how much more talented Tricia Cast was than LLB, and instead kept them in close story that benefited both actresses and characters.