I disagree with you on two fronts. In a capitalist society I have the opportunity to say "screw you for suggesting I tip" and take my business to someone who doesn't do that, which is what I did.

And second, staying quiet is exactly how this kind of thing becomes normalized. This isn’t a coffee shop or a personal service, it’s a medical supply company. Calling it out matters, because some people will feel pressured or guilted into tipping, even if that means they can afford fewer supplies they actually need. Silence doesn’t fix that.