1) Failure to understand Klippel measurements
Example would be nice.
2) Poor testing methodology - eg the tests conducted on the Chord M Scaler
How so? I’ve read the test.
4) Testing cables for interference when they are not plugged in to anything
Not sure about this, if you're referring to power cable the cable was plugged into the wall receptacle.
7) Conducting speaker listening tests based on 1 speaker only ( I do not care what he says about the validity of this, as this is nonsense)
This is your opinion, which is fine but there is testing which supports using one speaker.