Unless you are able to provide a proof, this is just a pure speculation without any minimal basement.
I am not surprised if "weak" words or phrases have been verified in the past (some of these have received and send btc for sure have been "used").
This not means that an address created by Satoshi could ever had this way of generation... I don't think this could be something possible also having the chance to reuse one of his address could lead to malicious actions.