I'm sure it was just a slip of the tongue but during OEI the TL is not inhibited. During OEI operation the TL is very definitely ON - but with settings appropriate to the OEI situation. Thus, after an engine fails, the torque is permitted a short overswing above the 160 limit but then the Torque will remain at 160 and the NR will droop if the collective is raised any further.
G
