Frankly, this is precisely what I feel Duggan has reestablished for her. He treats and writes her like a leader, equal to Scott, making decisions, mentoring and encouraging her teammates, strategizing, and emerging victorious, both single-handedly and in conjunction with her team.
Duggan has also implied that she has been repressing herself in some ways, though the reasons are unknown as of yet. Maybe she knows more than she's let on and this, coupled with the wear and tear of all that she went through while and after rejecting the Phoenix Force—i.e., realizing her entire family is dead, remembering her time displacement, being submerged in a utopian reality created by her son—influenced and affected why and how she entered and behaved during the establishment of Krakoa. Perhaps this is something Gillen will touch on.
As has been made clear, the Celestials are judging
everyone for their past crimes during Judgment Day. Moreover, Jean's "big participation" in this event is centered around her working with Iron Man and Ajak to shut down the Progenitor Celestial, which brings about her judgment. The solicit states:
https://www.marvel.com/articles/comi...en-key-endgame
Jean has been appearing in Logan's stories before and after her deaths for decades, so I hardly consider this a "forced" moment.