This is demonstrably false as we've already seen companies fight against regulations that force them to provide information about products (like country of origin or GMO labeling). The companies actually argue that giving the consumer more information puts them at a disadvantage because consumers might be misinformed about the implications of this new information, e.g. "GMOs are bad, so I won't buy them".

For the record, I think the argument is correct, I just don't think it justifies concealing the information, people should be able to use whatever arbitrary or incorrect criteria they please when it comes to how they spend their money.