The difference being that Fisto still looks good with his brown hair, Frosta doesn't look as good with the darker blue hair. I'm sorry there is a big difference between white and gray. Clearly Mattel knows this that's why the vintage and Polly Pocket figures have true white paint apps.
Don't act like it's only POP fans who complain about how MOTUC figures turn out. Example the red around He-Man's eyes, Clawful's head, Stinkor's forearms (a problem also seen in Frosta).
Just because something is not a big deal to you doesn't mean that it isn't to someone else. Respect is an important thing, lets all try harder to show to each other. It really does make for a happier forum.