It is not terribly unusual for students to leave with 100+ hours.
Is the UAS flying training syllabus still only 30 hours over 3 years?
If so, for someone to leave with over 100 hours, there must have been a significant number of others who didn't want to learn to fly. This could easily give the impression (probably false) of an 'inner circle' who 'get the trips' as alluded to in the Time article.
If indeed
There seemed to be very little supervision or organisation of the students by RAF officers.
at that particular UAS, I wouldn't be terribly surprised. Even back in my QFI-ing time, a certain UAS which was on Summer Camp at our aerodrome whilst we were away was panned by the Stn Cdr for its lack of student supervision. Their staff were all accommodated off-base in an hotel living the life of Riley, whilst some of their ill-disciplined students caused mayhem on base. It was therefore ordained that the UAS would provide an evening Duty Officer to keep an eye on their little cherubs - who would be obliged to stay on base overnight. Something which the better run UASs did anyway.....