My take is that if you can hear a difference, there must be some difference. If a device or cable or whatever measures exactly the same it should sound exactly the same.
Can you measure brain and soul? I believe you cannot even measure your ears fully.
Colours have shades too, they are not only come in red, blue, green, etc.
Do all people see the same colouring, do all people have the same sensitivity to light? I do not think so, no bias here.
But i do agree that it is a hobby so no big harm.
I would like to see a complete set of new measurement method by the people who do that, till then enjoy.