Looks like a right-handed person writing with her left hand. The Asmo would know - people often try to imitate His ambidexterity. In any case, what's preventing this annoying feminist-to-be from playing with "boys'" Legos?
I automatically question the authenticity of anything online claiming to have come from a child's hand.
That aside, it is a legit complaint. The problem is not that she can not play with "boy" Legos, it's that there are no female Lego characters, outside of those dictated by movie-themed sets. Or the pink "girl" sets. Plus the problem set forth by Lego attempting to assign male and female traits and set them forth in color-coded little boxes, although that goes beyond just Lego.
My deepest beef with Lego is that they've become wholly uncreative, exchanging gallon buckets of random blocks to what you will with, with Hollywood-licensed boxed sets of specialized blocks that can be put together one way. Very glad my parents kept all my old Legos, which are mixed in with my dad's old Legos.