This seems pretty tame, IMO. I think these folks should pick their battles. Better to have intelligent kids making noise (as they'll probably listen to you when you ask to quiet down) than to have belligerent kids who were raised with poor manners.
Hey - you might want to add www.thinkster.io to the "extended reading" section, as its regarded as one of the best free comprehensive angularjs resources (and uses many of the egghead videos)
When you say 1000 schools, do you mean 1000 schools using your product everyday or that one person from 1000 schools has filled out the form on your website?