I haven't given ACR a full go, but will try with skin tones to see what you mean. I know LR does quite well, I reckon anyway.
I don't think you're being arrogant/zealous about it. You're honestly providing advice that you believe is the best option. And based on your criteria, it is. Totally respect that.
As I've said before, though - I like it better when people agree with me. It means they're right too!