Article is just blogspam for their dubious "habit coach" service, contains multiple affiliate links to the same.

Rest of the article seems to be fluff, as another commentor pointed out the author estimates 2 hours per book. That's laughable.

Regardless of the fact if it's even possible to read that quickly, what about retaining and revising what you learnt? Especially important if you're reading non-fiction. I'm trying to experiment with the Zettelkasten method (posted on HN a few days ago) to see if that works.