Not just unlikely. It did not happen.I do agree an implosion was kinda unlikely.
IMO, most of that damage was impact, with the force of it (probably around 45-50mph?) flattening decks, blowing out the starboard side hull. The portside splayed out, and I do support Charles Pellegrino’s theory about the downblast.
Look at the terms that you have used yourself to describe the nature of damage to the stern section. "blowing out", "splayed out" "ejected out" etc. Does any of that seem like the result of an implosion to you?The way the starboard side hull and debris items are ejected out the side? That’s proof right there, in my opinion.