Diplomatic as ever me yes Chris
Looking now on my 19" TFT monitor it looks like its designed to be like that. Would be no good in hard motorsport because if the wheel takes a knock from the side, the bottom of the case will bend, just like every single Koni and Motorcraft strut I have ever had on did. If it were sat on the lip it would gain more strength from the hub/lip face.
Fine for road / mild track use

Might email them tho' to ask why