Watched the film and I noticed the cushioning reacts to the extreme when it is facing a jar of two or more inches in height like the brick it ran over in the utube.
This has to create a real problem for rims and CV joints when that type of contact happens. So hitting road debris may be an adventure.
Hydroplaning may also be a problem. Hydroplaning is caused by a combination of standing water on the road, car speed, and under-inflated or worn-out tires. The way the tread is set up on the tires, to make it collapsible, will collect a lot of water and may be contributory to it. I didn’t see any testing on the film of high speeds or water.
rwood
“This has to create a real problem for rims and CV joints when that type of contact happens. So hitting road debris may be an adventure.”
A friend who has a new Euro luxury car was on vacation and her husband was driving and hit a brick in the road with new tires.
The tires came out okay but the a very expensive rim didn’t fare very well. The couple spent an unplanned week in a remote area waiting for a new rim.
The concerns you list are the same for conventional tires.
M has extensive experience with this type of tire in the industrial field.
Run-flat tires probably give the same sort of experience...used to be that suspensions softened the road and traditional tires helped...these days, they opt for stability and agility with tighter suspensions and a lot of the performance 9=(and “regular”) tires add to the stiffness.