Also, colour blindness will make it very difficult to shoot video footage where you have to be in full control of the colour balance of the camera.
Actually, rattle, that’s not true.
Graphics professionals (including videographers) don’t judge colour content – they measure. What your eyes see and what your brain registers are, as we all know, often not quite the same. What your eyes see and what your camera registers is very different and depends on lenses, light levels, light angle, registration software (including film sensitivity) and a host of other minutiae. Then what your camera has registered will be modified during display depending on display medium, ambient light conditions, image refresh rate and another plethora of details we laymen never consider. Even the professional cannot control all these factors unless they are measured.
A little background behind my certainty on this matter: my brother graduated as a graphics design specialist and ended up partner in a graphics consulting firm, dealing with and providing training in just these kind of matters. His partner, who is still running the firm, is seriously colourblind but was always most effective because he was physically unable to make a judgement on colour content – he had to measure it, thereby creating consistenly reproducible results.