No clue what's going on but if a person trusted someone in SQ prior, or if you have someone as a friend, could they not theoretically add the individual themselves?
after over 50 hours of work im so happy ive finished the new xp trophies for sendou, heres a highlight of some of the best ones. they will be for 30, 32, 35, 40 xp values and will also show which region you got it in