Good video, wish they had a big 4x4 on summer tyres to compare with, that would have been interesting
The case for winter tyres is clear, it's just exaggerated when you've got snow on the ground.
If you want the best performance during the cold, wet, winter months then fit quality winter tyres. If you want the best performance in the warmer summer months fit premium tyres, not ditch finders. Horses for courses and all that.
If you can afford it your sorted, if not then you've got to accept some compromise. I don't like walking on cold, wet, slippery, icy, snowy surfaces with my leather soled shoes on, much prefer it with something that has a good tread