IMO, Tornado Alley needs to change the shape(oval) of buildings and roofs(dome) with

[Yo_Mama]

52. Won't work for an E4 or an E5

Direct hits from these very rare tornadoes are going to demolish above ground structures.

Resistant and reinforced construction such as in your links will protect against the much more common low-intensity tornadoes, but E4 and E5s are incredibly strong. Once you get into winds of 200 miles and hour and up with flying debris acting like a giant sander, nothing much that's sticking up will survive.

A lot of new houses in tornado-prone areas are built with the interior reinforced "safe rooms" or with inground storm shelters, if possible. Inground shelters are not possible where I live, due to very high water tables. So our house is built to be resistant and it does have the one interior room that will be highly resistant, but it's still all going to be gone if a big one hits directly.

Schools are usually built with interior resistance features, but don't fool yourself thinking that it will defeat an F5. It won't.