I honestly think this is going way deeper than necessary. The attraction CMs are not looking at guests' profiles to determine accommodations. A single individual (like the PP) walks up and says "I need to leave the queue how should I handle that?" -- they can easily see she is 1 person, or they ask if uncertain about others standing nearby.
IF a return time were granted, it would have only been attached to the 1 individual, so again it doesn't matter how many friends & family are linked to her profile. At that moment, for that attraction, she was 1 person asking for accommodation for 1 person. No need for anybody to dig through an
MDE profile.