No, I do not think the customer is always right. If someone says there is some conspiracy between Microsoft and a media publication and I know it to be a false assumption, then I will correct the person (customer) to said it. I am the one who should (as was) offended in this case, not the customer. Beyond that, I've known Bill Anderson for 13 years both work related and personally, and he is a very smart guy but sometimes guesses at what goes on behind the scenes at Microsoft and is often wrong about them - and when he is and spreads something as a false rumor, I will attempt to correct it.
Think about how you would respond if someone said "Wanna bet that Denis Chasse is conspiring with some company to say what he is saying here on the UT". Opinions are one thing, but when someone (a customer) states something that is false, then they are wrong. But, they have the right to be wrong and they have to expect possibly being corrected in response.