I too hated the bag checks. Too many times I watched security open my eyeglass case, unfold a poncho, and look in my wife's wallet. Any knife that could fit in those items would be real small, and by holding the poncho you could tell it was too light to hold a gun. Any criminal who wants to bring a weapon to WDW is bringing it in a baby stroller or ECV, because they don't search them. It was security theater at its worst. I once joked that the easiest way to bring a gun in, would be inside a popcorn bucket.
At least now, they will have something that works, and it will catch all the "I carry all the time" types who need to bring a gun to a theme park to feel safer.