Hmmm ... probably? I've been around some discussions on this, but I'm not the expert that most of the others there were. This will have an effect of raising the values in all colors up and down, but that's a slightly different effect than raising the colors themselves ... there's apparently more saturation/intensity changes that occur in a "true" ganged RGB, while the luma values move some. This will have a bit more effect on luma than saturation/intensity. Now, Joost & Dennis & some others are welcome to jump in here with detailed tech specs ...
Neil