It probably is.
As someone who has a young daughter and is already having trouble finding age appropriate clothing, I find stuff like this really dispiriting. I want to walk up to advertisers who do this kind of thing and say, "Do you have a daughter? If so, why do you do this kind of stuff?"
If you don't believe the article, watch this video clip:
I'm sorry, but dressing your 4 year old to look like a floozy just isn't cool.