He stumbled across this connection? Noice autism. Wow. Lot's to ponder. Possible image playbook, slightly used, being repeated to mimic a look, memories of someone(like Diana) well-liked, even worshipped, hoping for a similar public reaction? If intended to be subtle or subliminal, then it failed. But if designed to be noticed by someone, then who? Or it was an absolutely stupid and desperate attempt by MM to be more likable? What think? Intended to be caught at it or no?
Or are her puppet masters showing their hand? Sending a message. One, that she is under control. And by extension, her husband? Puppets.