Factual error: At the diner scene at the Gimli Slider, there's an ashtray with a lit cigarette on the table. Manitoba has had a smoking ban in all enclosed public spaces for over a decade.
Factual error: In the background, outside the Gimli Slider diner, you can see mountains. Gimli, MB is flat, and on the shores of Lake Winnipeg.
Answer: There's no clear answer but after defeating and killing Howe, Wallace seemed resigned to his fate that he was now living as a walrus and may have refused corrective surgery. It wasn't until the end when Ally said that she still loved him that his humanity began to resurface.
Phaneron ★
I agree with this, and I also think it wouldn't be worth correcting. He would still not look human.