many interesting conversations here and looks like a lot of folks who ride these often without issue.
I'm a motorized skateboarder for well over 15 years now. I've ridden one wheels a few times and while they are intuitive and versatile they are also the most dangerous option in an already very dangerous category. it's anecdotal, but all the worst injuries I've directly and indirectly confirmed were all from riding one wheels. I have lived on the edge and done plenty of dangerous things but owning a one wheel will never be one of them. the number of times I've had to be very nimble very quick would not have been possible on a one wheel. they simply lack the quick stability required to safely jump off from either foot and run out in any direction.
all that to say I'm not surprised that they have done some version of a recall and I'm wondering how they can legally sell them at all. yes, they are impressive vehicles and can be used relatively safely. but they are absolutely objectively more dangerous than 4 wheels.
it sounds like you're being sarcastic. but the reality is that the line exists somewhere. motorcycles, with seats and handles, are safer than motorized skateboards at the same speeds. you'll have to come up with an example that better fits where you're implying motorbikes do.