Incorrect. The Bishop, Archbishop Robert J. Carlson, where her order is headquartered, St. Louis, can also act, as can her Provincial Superior here in the States, Sr. Louise Gallahue DC, as well as the Superioress General of the Daughters of Charity, Sister Evelyne Franc, D.C., as well as Most Rev. Gregory Gay CM, Superior General of the Company of Daughters of Charity, as well as Rev. Patrick J. Griffin, C.M. Director General of the Company of Daughters of Charity. In addition Keehan makes annual vows not perpetual ones, since she is not a nun. She can be cashiered at any time for violating her vow of obedience.
I am not sure if Archbishop Carlson would have any authority if Sr. Keenan resides outside of the Archdiocese of Saint Louis, perhaps but I think not. I believe that the jurisdiction over her as a member of a religious order would be with the Congregation for Institutes of Consecrated Life and Societies of Apostolic Life rather than with any local bishop.
The others on your list, however, are not bishops. I was specifically addressing the fact that the bishops could not act as some sort of collective board in disciplining her.