I'm not sure about the petition or what it means exactly.
USFS' 2025 Worlds/4CC/Junior Worlds selection document links are posted here:
https://www.fsuniverse.net/forum/threads/2024-25-usfs-international-assignments.111847/#post-6615035
Relevant excerpts:
(D) Petition Athletes. Athletes/teams who qualified to compete but did not compete or
complete both segments of the competition at any of the events listed above due to injury
or illness, verified by U.S. Figure Skating medical personnel, may still be considered for
selection by petitioning to the International Committee for nomination to the World Team.
A petition in writing for consideration must be submitted to the International Committee
Chair prior to the International Committee meeting for the petitioner’s respective event
To be considered for selection by petition, the athlete must be able to prove competitive
readiness by performing complete competition programs (SP/RD, FS/FD) with all planned
program elements by a specified date, as approved and reviewed by a monitoring panel to
be determined by the International Committee. In addition, U.S. Figure Skating medical
personnel must verify that the athlete(s) will be physically ready to compete at the World
Championships. If the petition is accepted, the athlete/team will be added to the pool.
2. DISCRETIONARY SELECTION (if applicable)
2.1. Provide rationale for utilizing discretionary selection:
To field the most competitive team, U.S. Figure Skating’s International Committee
will take into consideration the criteria above to determine the athletes who will
have the best chance for success at the ISU World Figure Skating Championships to
win the maximum number of medals and future berths for the World Team the
following season.
It has been the experience of U.S. Figure Skating that the athletes who have had
success at the international level are those who have demonstrated consistent
performances as opposed to the athletes who have only a single great performance.
Therefore, by not having the selection process based solely on one event, U.S. Figure
Skating can select the best athletes to represent the United States at the ISU World
Figure Skating Championships. In addition, if there is an injury or illness that would
prevent a dominant athlete from competing at one of the events listed in section 1.2,
the petition process allows U.S. Figure Skating to consider for selection all the best
representatives for the ISU World Figure Skating Championships.