These are both basically MoonChild saying "it's not true" which doesn't change whether it's true.

MoonChild also told everybody that Let's Encrypt is a terrible idea, untrustworthy and nobody should use it. How did that end up?

I will give them props for actually doing it (plenty of people went "I'll just fork it" when Mozilla decided to change things but very few of them actually did all the resulting heavy lifting) not just talking about it. That's not nothing, but it doesn't make them right.