Please....disagree with me anytime you think you should!
You could be right to a degree. The only pictures I've seen taken with an orange filter are those that someone has been posting here on the board. If they haven't been worked on with PhotoShop or something similiar, to me they are too bright with exaggerated colors. I much prefer the colors in the shark pic you posted. Yes, a tinge of yellow but believeable. If that's at 60-80ft, it must have been a very bright sunny day! The second picture is too garrish. I've had that same species of clown fish in my aquarium and they do not have blue stripes and lemon yellow fins.
The only filters I have any experience with underwater is my dive mask. It's a Sea Vision with light red lenses. Yes, it does replace some of the reds/oranges/yellows at depths deeper than 30ft. But below about 50ft, they add nothing at all. I ass-u-me camera filters would be very similiar.
If someone had no strobe at all, the filter could help to a degree, but I wouldn't expect outstanding color replacement.