I expect it is precisely that. Some numpty will set up a camera, looking directly into the sun, with a dirty great big telephoto, and will stare into it for ages, burn out their retina, then claim compensation from the manufacturer for not warning them that the sun is bright. People who sue a restaurant or cafe 'cos the coffee was very hot & they scalded their tongue, then find an idiot judge who'll grant them millions in damages, they're the ones the camera makers are scared of, and so they tell us stupid things, all to cover their arse.