There is no kinetic or dynamic stress on the strap once it is installed. All it does is hold the fan assembly tight on the lower locating pin.
However in the event of a rear end 'incident' you will run the risk of the whole assembly becoming unattached and careening into your engine lid or rear firewall depending of the severity.
FWIW, I took it a step further and connected every other hole in the Rennline strap by just making them into longer slots.
So,... imagine how much weight I am saving by further lightening the strap, AND, going #2 before my rung group gets called
Bill K