This could happen in many airports all over the world..
Security personnel will never be smacked on their fingers for being too strict, but is in danger of loosing their job if they are butterfingered. So it's quite natural..
I'm glad we have these controls, but some of it does not make all that much sense to me. Especially on those long distance flights, we still receive sharp steak-knifes, metal peanut boxes and various items made of glass.
Also, with no limit of how much liquid one can bring, just the size of each container. Combined with no restrictions regarding lighters and bottles of spirits from the fax free.. well, one can only hope one is packed for a party