Oh I agree. He did the best job he was able to do. His first words were asking if everyone was ok. If you got the impression I was trying to find fault with the pilot I am sorry. Just trying to make observations. I give him a lot of credit. He appeared calm the entire time and did the best he could. He had enough respect to even give a sincere apology. It's going to be interesting to find out what did happen.
I have changed my opinion. I took a good look at the video and it looks like the airplane hit a dirt berm. I paused vid and looked at the tracks in snow. From watching them walking you can see the pilot almost fall when his foot goes into a deeper spot. Have feeling this was a plowed field and nose wheel buried itself in a high spot.
I think he misjudged distance off the ground which would be easy with the snow. I assume he did not flare at all. I do not believe the snow had anything to do with the airplane flipping with the exception of visibility.
I am doubtful it was carb ice. It looked too cold. When it it is cold there is little humidity in the air. The moisture in the air is what causes icing. I have a feeling something else will be the cause. Pilot prob assumed ice due to how the engine was reacting.