Thank you for taking the time from your prolific Storm and the X-Men fan fiction to comment on Jean's team book.
If you had actually read it, you'd see that Jean's goals and actions directly interfere with Nova's plans. In addition to Jean foiling her entire plan the first time, she's definitely being set up as Jean's nemesis and the team villain.
Again Jean will never be a "strong enough psi character" for you because everything she does you attribute to PIS. But somehow for others it sets a new standard for them. So I don't want to get into that issue with you here.