Not really. It doesn't look like a blog, and it's not a person/org's specific blog post. It's just called "blog" in a breadcrumb somewhere, which most people won't read. It's actual a guest editorial, but still - doesn't really look like one.
Yeah, it really is, even if what's linked to is one post rather than the entire blog.
His stuff pops up here often enough. He really does blog at Science. Has for years and years.
If you have a background in chemistry, it's fairly accessible (i.e., he very rarely talks about anything in a depth that an undergrad chem major would have trouble understanding - which, given that most chemists start branching off very quickly in grad school, is roughly the appropriate depth for writing intended for a general chemistry audience, since it's the last common knowledge level).
The top of the sidebar describes what "In the Pipeline" is.