It's been more than a meme.
As the article points out, it's been a question in philosophy since antiquity. At least 2500 years of discussion, probably more. We have no way to know how different people process what they see without peeking inside the brain and comparing. This is newsworthy as it's the closest we've come to verifying it.
There are still open questions about perception and interpretation in addition to just neural pathways, particularly around those with different sensitivities, but that's at least a start.
Color blindness missing one, two, or three sensitivities, tetrachromats or having a fourth sensitivity, shifted sensitivities that peak at slightly different places for different people, all of them lead to ways the colors could be perceived and interpreted differently by different people. It's a good start at research, but there's a lot more that can be answered.