And was the skater required to abide by the waiting periods that also are conditions of the rule? (The citizenship application alone meets only one of the necessary conditions for singles skaters, according to the language.)
I would note also that Rule 109 does allow for some exceptions. Did the ISU grant a formal exception to the skater?
5. Exceptions to paragraphs 2 & 3 of this Rule may be granted by the Council of the ISU, which may also enter a competitor for an event (see also Rule 115, paragraph 5 and Rules 130 and 131). A competitor nominated by the ISU does not count in the quota of the country of his nationality or residence.