Although the show appears to be well-intentioned, it still seems like it could have pro-burka effect on its audience, especially since the the main character doesn't wear it all the time. It seems to basically say: Hey, you can be a normal and boring person OR you could put on a burka and be an awesome superhero. And since burkas are so widespread, it is quite easy to just put one on. Well, for girls at least. It's as if someone told me it would be totally socially acceptable to run around dressed like Batman all day. If I was still a kid I would totally do that.
I do not know nearly enough to make a reasonably qualified statement about burkas in general, but I could see the point of them being glorified somewhat. Perhaps not as the "trendy symbol" the news mentions it being criticized as, but simply as the type of clothes that this "super-awesome TV-superhero is wearing!!".
On the other hand, characters using religion/culture/nation related clothes have existed since the days of Captain America or The Monk [http://en.wikipedia.org/wiki/Monk_(comics)], and I doubt they affected the mind of its audience that much.
At the end of the day it might just be perceived as what it apparently is, a funny use of a burka as a superhero costume.