As I own the official steam version, I can confirm it does NOT need a cracked exe. I honestly don't know why it was pulled. The only reason I can think is that it states in the description, that the fix does not always apply to every in game scene. Sometimes it takes a minute to kick in, and some camera angles just don't fix at all, But I still feel the fix is worth it IMO. Especially since without it, there are improperly placed black bars, and while the FOV doesn't always fix, the black bar issue is gone in the fix permanently.
Though it should be noted that the FOV is based on an triple WS setup, so if someone wanted a 21:9 setup, they would need to put -36 in the fov boost, since 0 results in a really, really, wide fov.