[alwa]

That seems like a sensible point to me. At some level, let the Bimbos of the world have the sesame-agnostic mass market—that only strengthens the case for niche competitors who serve this specific market.

If sesame is in fact poison for a specific subgroup, this shifts the mass market option from “eh it’s probably fine, how often does cross-contamination happen” to “definitely poison for me, I’d better seek an alternative.”