It may be that the newly risen samurai class loved tea ritual more for the access it provided than its spiritual benefits.
Tea Room called Shoko-ken attributed to feudal lord Hosokawa Sansai located at Kotoin Temple
Hereditary lords (daimyo), samurai, merchants, and priests could meet in the tea room and be confident that they shared a common knowledge of the etiquette. It also provided a graceful way to curry favor and grant rewards. The samurai hired merchant tea masters to teach them how to make tea and take care of their utensils. The heads of many of today's "tea schools" are descended from medieval tea masters such as Sen Rikyu.