We don’t know the details of the case so it’s hard to say anything. But from SM’s statement it seemed like Jessica still wanted to promote for at least another year before “halting” her activities. Or taking a indefinite hiatus like Kibum from SuJu.
I don’t understand why they had to push up her removal from the group and why they couldn’t have done it in a way that didn’t hurt her. She knew she was going to stop promoting but to suddenly be told that she’s not a member anymore, months before her planned leave is bullshit.
But she’s still being managed by SM so who knows whether they’ll try to resolve this later.