Yes, control...and absolutely no consideration for people's individual comfort, just a "herd mentality." I am not comfortable in crowds...related to claustrophobia,discomfort with heights, and anxiety. So, at assemblies and conventions I always looked for seats either on the end of the row, or seats not too high up in a stadium. So many times, the attendants had roped off entire sections, and got ugly if I requested a more comfortable seat, not even caring to allow me to explain what my issues were. Same at the KH, where they insisted that everyone crowd into seats at the front of the hall, leaving lots of empty seats at the back of the room. (except, of course, when I was attempting to get reinstated---then I was avoided like I had Ebola.)
I had developed a cough, and rather than disturb others around me during the WT study, I went out to the lobby to sit and continue to listen. An attendant came over to me and said I had to go back to the main hall, and in the midst of my explanation, he turned around and ignored me, but not before he questioned how it would look to visitors if they came in and found me sitting there. (???) It seems that the people assigned as attendants just enjoy the sense of power that it fools them into thinking they have, probably above what they have in their everyday lives.