Fair criticism. What would you suggest as a better phrase to convey the concept?

I would just talk more neutrally (you also talked about 'fearing' Bitcoin). So I would just say that a vendor using Tando doesn't have to accept or then hold BTC (if they don't want to). Even though Bitcoin & Lightning facilitates the trade from the buyer's side But just to repeat, I really love what you're doing with Tando. It's such a fantastic project and seems to have some really great ppl involved.