Why can't we take pictures of penguins?

It is understandable not to turn on the flash, because the flash will scare the animals, but the only agreement I know about Antarctic tourism is: keep a certain distance from wild animals, and don't touch, surround or feed them. Fur seals should be kept at least 1.5 meters, and seals such as penguins and seabirds should be kept at 4.5 meters. In addition, please refer to: How do individuals travel to Antarctica?