Kirks gusset,
As I mentioned previously, if you have an unlock you 'll get a ENG REVERSE UNLOCK (thrust goes automatic to idle), which is not inhibited and is one of the conditions that should lead to RTO.
ENG REVERSER FAULT is inhibited during phases 3,4,5. It is nowhere stated that it might be not inhibited depending on the conditions that caused the message. For me it is not straightforward. My question still applies.
Rgds.