No he's not. He's saying that non-scientific, i.e. non-photogrammetric analysis of photos can't be used to judge and he's right. There is no photogrammetric analysis happening on this forum by anyone other than me, that I know of. And frankly, it would be easier for me to do the hand-in-hand side-by-side comparison of the original Red 5 and the eFX than to bother with that, anyway, and I have the requisite materials. There is not enough known photo data of Red 5 publicly available to make photogrammetric analysis successful in any regard. Comparisons are not accurate without them, and if they existed, you'd already have a 100% accurate assessment of the dimensions of the original Red 5, which of course you don't. This is why its size is pure speculation and guesswork, which is why the entire "which is correct" issue exists.
You don't know whether eFX is right or wrong because you don't know what right is, and you can't obtain the data photogrammetrically or you would have. By-eye photo comparisons are worthless, he stated so, and he is correct, and that is the scientific method. Period. Notice aesthetics appear nowhere in this discussion, as they are irrelevant. There is correct, and there is incorrect. What is aesthetically correct is "accurate." You don't have the data.
_Mike