If you fill out a ballot application for a dead relative or a pet and it gets rejected, that's on you and I'm not surprised.

If you fill out an application for yourself incorrectly, then you're either an idiot or lying. These things aren't complicated, and erroneous applications don't change that.

Edit: To clarify, the applications are blank forms, it doesn't matter whose name was on the envelope. If someone messes up on it, odds are they'd mess up on a standard voter registration form as well.