I think it's fair more impacting to have friends getting into trials, and word of mount the old fashioned way. Sure seeing a youtube video etc is going to make people want to get into riding trials. But having a group of friends in the area who are riding trials is far more important for riders to get past 'learning the basics' and getting good enough to actually have a laugh with the sport and getting other people into it.
I agree trials is more accessible than ever before.