Impact of phase inversion by preamp


This will be my first post on this forum so I thought I’d pose a question I’ve always wondered about.  I have a Conrad Johnson Premier 18LS preamp that I’ve been extremely happy with since first acquiring it some years ago.  This is a solid state single ended, single stage design that inverts the phase of the input signal at the output.  The manual states that you should reverse the connections to the speakers to account for this.  Obviously this is easily done but I really can’t see how it would really matter as long as things are connected consistently between the left and right channels.  I’d be interested to hear what others have to say on this subject.
ligjo
Post removed 
George Louis the Polarity Pundit debunked himself in our room at CES about 10 years ago. He walked in, claimed our system was out of phase, so I said OK- here its in phase then and clicked the switch. Then he claimed you couldn't hear it on LP, so I said OK, here's the same track on CD. Then he claimed you couldn't hear it if it was an analog tape source and quickly left with us laughing in his wake. Funny thing is the recording is done with minimal mics in true stereo; it was easy to hear which position was right- it was George who could not. Irony is apparently still *in*.
OK, so that’s one data point. If in fact the story is true. But one data point doesn’t really mean too much. Even if he was wrong. That’s not very convincing evidence. What evidence do you have that Polarity is a 50% proposition for CDs? 
What evidence do you have that Polarity is a 50% proposition for CDs?
@geoffkait What proof is there that it is anything but random?


I’m not asking for proof. I’m only asking for evidence. Got any? A whole lotta nothin’ I suspect.