separating “religion” and “spirituality” really seems to be a function of a contemporary Western mindset.
It does seem very contemporary. Even in the 19th and early 20th Centuries when metaphysical movements like Theosophy were big, they made no bones about calling Hinduism Hinduism and Buddhism Buddhism. They attributed ideas and practices to the religions of the East that had no real connection, because it gave them an air of mystery and prestige. Now calling something religious is considered anathema. Labels, labels.