Sure. That's why it wouldn't be right to tell
@pemerton he's wrong about what he did. He's the only one of us who was there. He knows the little cues and actions that clued him and the rest of the group into what the DM was doing. He knows the bigger things that were done. Add to that the time factor with him forgetting a lot of those details, but knowing that they were there and made the right decision, and the difficulty of putting it all into text and even accurately describing some things, and you have a situation where those of us 100 miles above and several decades removed, shouldn't be telling him that he was wrong.
It's okay to ask questions about the details, or even say that given those same details you would or would not have made that decision, but it's not okay to tell him that he was wrong for his decision. We don't know nearly enough to make that call.