let me go pedantic and teach: "The customer is always right" does not mean that no matter what a customer says, you give them a false smile, and pretend you agree with them.
"The customer is always right" means "you are hearing actual feedback from your target audience; somebody giving attention to your product is experiencing friction and wants information or reassurance, and is taking the time to let you know"
Do you know how valuable that is? Most people exposed to your product (ads, PR, etc.) just move along. Customers who don't like your product generally just disappear.
Free market research should not be ignored. This customer is not only right, but is representative of a whole class of customers that you need to learn to win over.