Sorry, I watched the video without looking into the specifics of that case!
I was referring to someone who had a normal upbringing.
I think not. The majority do stay somewhat within the framework.
The difference lies in the ones that go the whole nine yards. CMIIW, but a Lubavitcher would have a much easier time integrating into the secular world, due to them being more 'exposed' and 'open-minded' than mainstream chassidim. You therefore have the likes of Luzer Twersky, Deborah Feldman and the rest of the Footsteps crew, being very vocal and public about their situation.
That, in turn, makes the public think that it is more of a problem amongst that type.