Actually I liked that. Think about this: Lyra has no Human counterpart in Equestria Girls, unlike, you know, everyone else (even Pinkie Pie implied that Twilight had a "twin sister" with a dog).

So, if Lyra has no human counterpart that means that she... IS REALLY A HUMAN! She fell through the portal when she was just a baby girl, and turned into a unicorn foal when she fell into Equestria. Raised by foster parents, she still has dreams of when she was a human baby in the human world through memories in her subconscious...



I have something to support said theory: We see Lyra in several episodes. But most notably, she's in Canterlot as a student in the same school as Twilight (in the first episode) and as one Princess Cadence's bridesmaid (in A Canterlot Weeding). But we also see her in Ponyville a lot, and the way she acts in Ponyville shows a whole different personality from the one in Canterlot. So the original Pony Lyra is in Canterlot, while the Human Lyra, that has subconscious memories of when she was a human, lives in Ponyville.