Isn't it a little too premature to be stating that such item does nothing just because we don't know what it does? I feel like this should be stated with cautio

Isn't it a little too premature to be stating that such item does nothing just because we don't know what it does? I feel like this should be stated with caution after the mislabeling of the tonsils, pineal gland, and thymus as vestigial.