I think for me its not that I feel so up in arms over it (I don't), it would just be a little disappointed. I know there are black actresses and singers who are natural out there, but there aren't many. And the ones that are, are usualy hiding it under straight weaves and/or wigs. So for me, Jill was refreshing. Even if she wore a wig or weave, at least it still was kinky hair. I feel like she and Erykah were the only one's truly rep'n natural.
Now I do love a nice sleek style too. All subjectiveness aside, Jill could have done better than this, IMO.
ETA: I have all of her albums and a perm will not stop me from getting the next one.