But right now, according to this, they deny it specically: “WARP replaces your original IP address with a Cloudflare IP […]. This happens regardless of whether the site is on the Cloudflare network or not.”
I don’t know of a checker to individually verify this quickly, but I assume they say the truth.
Anyway, I think you are right in that it wouldn’t be a concern for torrenting, if it was true for the present.
Edit: I found a tool to verify this now: this http header checker is using Cloudflare according to the urlvoid scan. And I can’t see my real IP in the X-Forwarded-For and CF-Connecting-IP HTTP headers