That's if you're trying to say thorough, which he wasn't. He was saying through. Different, although similar words.

This post is a direct continuation, picking up where the Thinking This iPad Mini Thing Through post left off. It's "Through-er" both as a joke and to make it perfectly clear it's a sequel to the previous post.

Thoroughly would imply something different, like he wasn't really thinking about carefully it in the first post. That isn't his intent. It's not supposed to supersede the other article, it's just "more".