Vulnerability disclosure is a hotly contested topic in the industry and Colin's comments can also be interpreted as saying Theo has no intention of falling in line with an opinion he clearly disagrees with.
Given that Theo maintains OpenBSD and what has come out of the project (https://www.openbsd.org/innovations.html), I think it's pretty clear that Theo is an extremely productive member of the community.
> [Theo] isn't interested in acting as a productive member of the community.
That's not saying he is not an extremely productive member of the community. It's saying that he is not acting in a way appropriate for that role. It's like when people say that Trump is not presidential, they don't deny that he is president.