Is the issue that the blowout causes the wheel to suddenly turn to one side, and the driver is unable to keep the wheel pointed the right way?
Or does it cause some other issue like drag? I can see how the smaller wheel diameter would cause braking to be increased on the side that blew out.
I don’t understand why this happen in a large truck or motor home but not a car. I’m not accepting answers along the lines of “But it’s bigger and harder to control you idiot”.