She's not a bad character. It's fairly nuanced, and I think Disney did a decent job of it. I will say that the animation of the song -- in the beginning -- shows a young girl discovering who she really is, and she's full of joy and excitement and wonder. Her creativity is flowing, and she is loving life with a big smile on her face. But -- by the end of the song -- she has a sultry look, a slinky dress, and rather tousled hair. Yeah, she looks less like a young girl and more like a simple slut. I found it off-putting, out of character, not true at all to the storyline, and just lazy/sloppy animation ("hey, she's all grown up now and we don't know how to represent that in any other way ..."). More of a mis-step than propaganda.
And by the way, I really dislike Disney.