I'm a little confused, what purpose does this distinction serve? That people like to define their opinions as a rebellion against received opinion isn't novel.

You're right, the examples were pretty cherry-picked.

My point was to show that, although we tend to celebrate our failure to be lured into holding contrarian positions for the sake of contrarianism, this can itself be a trap that we need to watch out for. I think the idea of meta-contrarian-ness is novel in a way the idea of contrarian-ness is not.