Which is in part written by the author and creator of Swift. Keep this in mind while reading this. Not to sound judgmental but I would be curious while Bill Gates explains to me why windows makes sense for X.
Just as one would take any marketing/promotional material for why a company's products are better than competitors with a grain of salt, and would want such material to be clearly marked as marketing material, I think bringing to light the author's relationship to the Swift helps, and does not hinder, further discussion.