I think you're both saying the same thing.
The shades of grey are also colours and I thought they were perfect for this subject. A wreck and a story over seventy years old.
As I wrote in the description of the video, given the boredom of quarantine I did some cleaning in the archives and I found this 2013 video never published because it had to be part of a project never made.
Moreover black and white allowed me to hide some of the flaws in the shooting.
I shot it with a Panasonic GH2 which was a great device at the time but certainly didn't excel in dynamic range. The wreck Lies on a sandy bottom between 15 and 30 meters with crystal clear water. Impossible to illuminate when shooting with a wide angle lens (especially in 2013). Add that I've never used a red filter because I've always shot with lights in deep water.
The result was an "all blue and green" video as you can see in thousands made without lights.
I liked it at the time but watching it after 7 years... Hence the idea of turning it into a sort of black and white.
Cheers