Couple of things.
1. The guy doesnt know the full Sony specs and how it compares to the XboxOne so really shouldnt try and compare the two.
2. I can see why he has replied, but he should just make a simple reply of he doesn't believe that the two consoles are that far apart, otherwise it just becomes a right old mess.
3. If both consoles were available to test and there was no other evidence, then I might be inclined to believe him more because of his suggestion that he has gone to his top tech guy... but as he hasnt got a PS4.. how can he know.
I can understand he is in a difficult position... but at the end of it all the games will speak for themselves. If they hadnt done such a rubbish PR job, perhaps pre-orders wouldnt be so bad and they wouldnt feel so much pressure to try and defend their box, rather than just sell it on it's merits.
If the guy is wrong, and his tech guy is wrong, then his credibility will be lost. The only problem i see is that this is coming from the company that stated their console will be 40x more powerful because of the cloud... so I am going to wait and see.