Zephyros
Not sure if this is relevant to OP, but in his book "Tarot Beyond The Basics", Louis says
"…. These logical inconsistencies suggest that the attribution of the twenty-two tarot trump to the letters of the Hebrew alphabet is sheer nonsense, a flight into fancy much like the unreliable belie that the tarot is the ancient Egyptian Book of Thoth."
I find that remark somewhat inexact. No one claimed the Golden Dawn attributions are "correct" except for the people who worked them out (claiming divine inspiration or authority based on antiquity is par for the course among occultists). And it was added on after several hundred years of Tarot history, no doubt about that.
But it does work. It gives the cards a framework, a system of checks and balances. The RWS and later decks that made use of this system are very different animals from the historical decks. Every image in the RWS comes about as a result of very specific reasons. Whether intended or not, those occultists found parallels between Tarot and the Hebrew alphabet and constructed a system on that.
The comparison to the belief about Egypt is wrong, as that has been conclusively debunked, while there is nothing to debunk about the Hebrew attributions. There is only to use them (or not) and admit that the modern decks used are in fact based on GD doctrines. It isn't as though there was the RWS and them evil people came along and started meddling with the attributions. The Hebrew attributions may not have been part of Tarot from the start, but they were indeed part of the RWS and every consecutive clone, from the start.