You mean like how they grounded the F22 fleet after many months of pilots raising safety concerns? Is that what you mean by quick?
On a more serious note, my perception is that the service branches are mostly concerned with the pilots, not so much the aircraft. This seems to be supported by how aggressively the DoD is pushing for integration of unmanned aircraft into civilian airspace compared to the ‘slow down’ stance of the FAA... no pilot? not so concerned about safety.
Fast movers have an inherent risk because of the mission that is why they have ejection seats. The military is still more safety conscious.