I had a different impression, though I haven't studied it very deeply. I thought they considered it a sacrament.
In any case, if the Supreme Court allows the DMT folks their tea, on what basis do they disallow others? Arbitrarily chosen congregation sizes or length of time the religions have been around? I'm not real comfortable with the idea of the courts deciding which religion is valid and which is not.
From what Ive heard it is indeed a sacrement, however its use isnt crucial to being a good follower.