Good example of how you can be technically thorough and fair and yet totally miss the fact vinyl does in fact wind up being more dynamic- even when cut from a digital file. He does a great job trying to explain it away. But the most relevant part is where he says there's just way too many variables so I DON'T KNOW why vinyl does this. It just does.
Issue with dynamic range database
Listen to the whole thing before commenting .... especially the part where the poster says, "I know, because I mastered it."
https://www.youtube.com/watch?v=n-AE9dL5FG8&t=7s
https://www.youtube.com/watch?v=n-AE9dL5FG8&t=7s