Welcome, cmg71, to Apple Support Communities!
First, none of us work for Apple. We are all simply users, like yourself, trying to help other users.
As for whether, or not, Chancemyman «reversed the two devices in his description of his test» or reversed things in a different way, that I acknowledged “he” may have done, I will not make any such assumption.
It is up to «him» to indicate what correction may be appropriate.
Additionally, as I pointed out, “his” test is still inadequate.
As for Apple’s testing, they do perform extensive tests before any product is even announced, let alone sold.
However, anyone trying to lay a claim against another, is the one upon whom the “burden of proof” is lain.
Incidentally, since I am not privy to what «Apple does» or does not do, I have no evidence that Apple is «deny[ing]» that this issue exists.