Orthodox teacher marks 75 years in the classroom

This video is totally awesome, but instead of focusing on this teacher, I was focused on the kid in the blue shirt with a suede yarmulke and clips – isn’t this against yeshiva policy. I was kind of shocked, I know Ner guys are cool – but I wonder if this showing of them on goyishe zachen like TV will lead other yeshivas to ostracize them?