Will we see history once again repeat itself??
I have changed the brand name for your viewing pleasure.
When I first listened to the video you came across as strongly anti Keysight so that appears to make you biased against the company straight away. Every multimeter has to be treated independently so it does not depend on the series or company it is from. You have said this yourself! There is a danger that you will stereotype a company because it does not at first live up to your own standards. "Saving your skin" is just saying that viewers will treat you with more respect and not pass you off as an anti Keysight tester.
I don't understand the point of testing these meters beyond their specifications. It says right on the front of the Keysight: "1000v" with CAT IV; why go beyond this?
These test are irrelevant over what is rated, is like you smash a car at 2 mach and say "ehh car not good, unsafe, bla bla" whats the point of using a meter over the rated point???
Why did you treat the Keysight unfairly?