Bob, with all due respect, this is a thread about chocolate, not beavers or vanillin. Swerve is organic and they guarantee their natural flavors aren't MSG.
I would rather eat extracts of the anal sacs of beavers than for example Sucralose - the final chemical compound created by the addition of chlorine atoms to sucrose molecules through a complex chemical reaction involving a number of highly toxic chemicals. If you don't like Swerve as sweetener , you can use something else.