In this case, by 'sounds better' I mean that how it sounds with respect to the master tape. For example I hear LP bass sounding very much the same.
Raul was suggesting that the sound of the LP is distorted compared to an analog tape and that is not the case. Further, he was suggesting that the sound of a digital copy of a digital master is less distorted than that of the LP, also not the case.
What is perhaps not understood is that the LP media is one of the lowest distortion and widest bandwidth media ever devised. If there is distortion, its an artifact of playback and as such if done right can be quite low- low enough that the distortion is not audible. There is no way you can do this with digital!
A simple test for anyone with a digital recorder is to record and play back sine wave sweep tones. You will be amazed at what you hear- the distortion digital has can be profound, easily heard, but unlike analog it tends to be related to the scan frequency rather than the musical tones recorded (in case you are curious what you hear, in the digital playback of the sweep tone you will also hear 'birdies', sets of modulation tones that change frequency as the fundamental changes). The distortion is easily heard even if the sweep tones are kept at a low level.
It is these distortions that contribute the brightness many perceive in the digital sound. I've pointed this distortion out to a number of pro-digital 'digi-phile' types in the past that have discounted it as a product of cheap converters, but oddly enough after 20 years (when I first heard it) its still with us. A lot has happened in the digital world since then but getting rid of distortion is not one of them.