The funny thing is that the author uses your exact logic when he finds evidence that goes against his hypothesis. He made posts that asked questions about things that Satoshi definitely would've known? Misdirection! Somebody else does it? Strong evidence against them!
This is why I stopped reading these Bitcoin creator stories. It's usually more about the journalist and their 'process' than the story.
The interesting thing to me is, it seems likely that whichever individual or small group actually is Satoshi must have planted at least a few misdirection false flags like that at some point. But how in the world would you ever tell which ones are that sort of misdirection and which are real?