Yes, you are. NASA is not picking one color here applying a filter to the entire image as you seem to be implying. They are doing their best with the data available from multiple instruments to determine what the color of each pixel should be. It is a lot more intricate a process than you make out.

There are some bad color filter stories from NASA (such as making Mars surface photos look more like an Earth desert with blue skies than you would actually think if you were there). But this is not a case of that.