There is no indication that the vending machine is inappropriatly storing or transmitting personally identifiable information or that its making decisions based on biased data.
And until the machine malfunctioned, there was no indication that the vending machine was collecting any data at all. Businesses can say whatever they want in the court of public opinion, but until these same claims are made in a court of law they should be considered lies to placate the public.
Furthermore, why even collect such data if it's not meant to be utilized? They already know what the most popular products are (since they know what they restock the most) so for what reason do they need to collect demographics?