Well, suppose I want to color my texture with a 5-color evenly spaced ramp.
I have to click the + button 4 times, then manually move around the new sliders to what I *guess* is probably evenly spaced. That is before I have even started picking the colors.
It also took me a long time to figure out (A) that I needed to load a palette (B) that I couldn't load that palette from the colorizer itself
Also, if there is a way to clone a colorizer, I haven't discovered it yet. I'll be using very similar color ramps often.