We actually have many competition crews that buy 2 or more sets of these items in one go 1 set on the car and 1 set in service.

They can then be changed in the service area or even by the side of the road when you take a hit like that, you can then carry on in the competition without having to jig the chassis of the vehicle and all the hassles that brings.

Wheels coming off are commonly associated with magnesium and alloy parts.
They are designed to snap/sheer rather than bend, but do offer the weight savings.

It is amazing though how simple components can totally transform the handling characteristics of the vehicle. Im glad you have found that out.

Drop me a line if you need direct help with parts.