I agree. Looking for identical sound is foolish. Looking for convincing sound, compared with the reference of unamplified live music, is a better approach. I will gladly concede that this is not without its own limitations and pitfalls.
And to me that is the crux of the matter. Most CD sound different from a similar analog piece. Assuming that they would come from the same reecroding but we can be almost certain that the processing, what makes the final products after all, will be different. Yet, for the most part I don't find the better CD lacking. Merely different and in the case of some pieces, I do find the CD better. Those of the fabled Mercury come to mind. IMHO , those CDs are better than their LP counterparts. I would really like to see people use the I prefer or IMO modifiers when talking about the overall superiority of LP over CD (or all form of digital).. I am dreaming.. IMO.
Truth to be told a ripped (to CD) LP sounds as identical as it can to the original. Very few people would be able to distinguish them with knowledge removed and that however long they want to try .. Of course once knowledge returns .. It would not be even be close