I read that comment and thought the same thing.
I think it would be a tragedy for them to miss that lesson, and then lose the ability to make beneficial contributions to Bitcoin in the future.
I'd love to see the blinded output amounts from Confidential Transactions make it into Bitcoin, but I don't think their current approach to this debate is a viable way of ensuring they'll be in a position to advocate for that in the future.
I would afraid to have CT on main chain.
There may be bug (or luck to find some number) and then creating bitcoins out of nothing. And nobody can verify.