Yes, that's totally what it is. He'll think of some other crime, wonder how that went down. There'll be so many times when he'll question it. It was made in an emotional state and with Philip no longer right there with his voice breaking it'll be different. I don't think he'll literally regret it and wish he did something else, though. It seems like the type of decision he can't think that about. It was who he was--like Philip said, it was an EST moment.
Re: Stan's potential regrets