The Memory League world records are also listed on the IAM statistics page:
https://iam-stats.org/records_ml.php
Will need to check again regarding Emma’s record but my recollection is similar to @Sylle.
My understanding is that if the images that were used during that attempt/tournament were the normal ML training images and not new ones created for the event, then it cannot count as a world record (the same applies to new/old faces at Names). I think that has been clarified quite clearly for a longer time. So, if the images were not new ones, the reason that it is listed there would be database-related and would be corrected.