No it isn't; it's two separate premises, which the author uses to synthesise a conclusion. Both premises are required for the conclusion. Neither premise is se

No it isn't; it's two separate premises, which the author uses to synthesise a conclusion. Both premises are required for the conclusion. Neither premise is settled, and if you disagree with either, you're welcome to discard the conclusion. But you can hardly expect a blogger to start from first principles in every post.