I'm no denier either, but you'll have to pardon me if I choose to not join the unthinking hordes who insist we must do something now, and no we will not think while we are doing this. Dissension is explicitly not allowed.
Oh, is that not exaaaaaaaaaaaactly what the message is? Of course not, but there is some truth there. There are highly trained scientists who don't fully support the party line, and they are not allowed to speak. I believe it is not an intellectually honest conversation, and I'm old enough to remember other situations where dissent was not allowed and it turned out not so good.
Also, don't forget that Scott is a humorist author, and part of his schtick is to deliberately cause outrage, especially with people who take themselves way too seriously.