The best parts of Crowley are the materials he "hoovered up" and synthesized - Buddhist dhyana, the Catholic mystical tradition’s "Interior Castle," Neoplatonism, and the very few fragments of the Papyri Graecae Magicae (PGM) they had.
But clinching Crowley's buttocks, too tightly (or any prophets, I would add) eventually range-limits the more mystical side of our tradition becasue he was an over-intellectualizing asshole, and possibly a sociopath. It left us with a sterile, dry interior life of concrete and bullshit where nothing can grow. Look at Thelema today, a dead guru cult.
Western Mystical practices as an ideal seek a balance of the The Good, The True, and the Beautiful. Without Love there is no point, and we just get stuck in the 9th Circle of the Forever Hell of pointless intellectual debates and Reddit-style autistic nerd one-up-manship. That's boring and a waste of a life.
(No offense to austists meant here, but over categorizing brains are not very useful here. Take up Enochian to give your busy-body left-hemisphere an extra heap of busy work to do).