Oh ok in terms of contextual tree damage you may be right about that.Trees around this house was mostly intacr and houses around this house was no more than low end 2 damage. The heavier material didn't necessary means stronger construction. There were other places Czech tornado was very violent where trees were fully denuded and debarked but I would be hesitate to this one based on contextual.
But just based on past events, one shouldn't expect the same degrees of structural failure to surrounding buildings after a European F4 event, due to the typically sturdier construction. Because of this, damage in European towns and cities always looks a little underwhelming compared to the intensity of the tornado. I do realize that heavier doesn't equal sturdier, but these buildings are typically built with load-bearing masonry walls that have some degree of reinforcement. We aren't dealing with the typical unreinforced, non load-bearing CMU that we see so much of here in the US, so I'm pretty sure the surrounding buildings endured higher winds than low-end F2. Compare to other European F4s, most notably Dolo-Mira, Italy 2015 or Hautmont, France 2008. Very similar damage patterns.