But, before making a decision on the actions I need to take, I studied the engine indications. So that is what I am sure of: N1 indicated 0, N2 indicated 0. I have been trained that this indicated an Engine Severe Damage, which made me call for a memory drill of the appropriate checklist.
The OP description of what he looked at in deciding the action to take is too simplified. As Centaurus noted there was no mention by the OP of any other engine parameters. The whole subject under discussion is not worth arguing about until the OP provides more detail on what else he saw other than the readings of two gauges, the N1 and N2.