1. We test all sort of inferior things to us, why would a life form superior to us do the same? I don't understand what your trying to say?
2. High school is often seen as a place where people "find themselves", even though people can change at any time in there life. Also, the majority of this shows viewers can more than likely relate to a dramatic event in high school.
3.Same as #1, and the experiment tried to cancel out a lot of the variables which you speak of. Also, it's a tv show, so they cant just keep using the same story over and over again...
Finally, its scientific fact that as people progress, their views change, so obviously people will look at this episode differently in 50 years. However, the producers probably aren't looking to earn a profit 50 years in the future.
Honestly, I dont know what your trying to argue, perhaps you were threatened by a resemblence in your own life, but who knows. Next time, try to explain your claims better. Maybe you'll answer your own question in the process. Also, don't forget the real-world applications of this show (e.g. make money). Think outside the box!