See I’m not a artist, i’m just an old coder. So when I look at creating Material Instances, and I think to myself, heck, I only wish to change some darn parameters… AND I don’t want to spend my life in the material editor. I want to be able to change those parameters, when ever I wish. and I want to be able to see the changes, with the lighting that is in the level, not looking at some little ball, in the material editor, thinking, ok how does that look, then compiling shaders, switching over to the level, and seeing what it looks like. When all I wanted was to change some parms!
I mean it’s just different strokes for different folks of course. Just that for me and I think for other coders, being able to just switch values around, and gettiong on with getting on, is a time saver.