If he were writing now he wouldn't get away with his breezy assertion that "I am not familiar with the exact constitution of the Tarot pack of cards, from which I have obviously departed to suit my convenience..." because Tarot is now mainstream- which it wasn't in his day.
As a wannabe poet I got drawn in too. From Richard Cavendish's The Black Arts (1967)- a comprehensive survey of the esoteric- I learned that there's no such card as "The Drowned Phoenician Sailor" (pity really) and from that book and Charles Williams's novel The Greater Trumps (1932) I learned that the Tarot goes deep.
I love the Tarot and have worked with it in many different ways- including (for a brief spell) doing readings for money (just like Mme Sosostris). Ailz and I passed our love of it on to Alice (who has picked it up and run with it). Ailz and Alice are much better Tarot readers than I am. More intuitive, you see.
My favourite card is the Fool. He's a free spirit- and utterly fearless. The dog of the world snaps at his heels and he doesn't even notice.