What's obvious to me is that the person filming is very biased toward wanting to prove a point. The "casual" clothing described as "jeans, a t-shirt, and a cardigan" is clearly much more than just casual. The "jeans" are not jeans, but rather very tight leggings... the "t-shirt" is not a typical t-shirt, but one that clearly accentuates her bustline... and the cardigan appears to be about two sizes too small, which also accentuates her figure.
So if his point was to try and prove that a woman who dresses for attention actually gets more attention, then I guess he proved his point. On the other hand, if he was somehow trying to make a comparison to a woman dressed in Hijab versus non-muslim clothing, then he should have put her in a full, casual dress.