If I remember rightly, after the Lauda crash modifications were made to Boeing aircraft so that the engine is commanded to idle if the reverser sleeves on the engine are sensed to be out of the stowed position & the aircraft is not on the ground.
Oakape, there has always been a feature that will command the engine to idle if the T/R is not in the commanded position (it's required by the FARs). On the older engines it was done with a mechanical feedback linkage, on FADEC it's all done with electrons.
Post Lauda, the T/Rs were retrofit with a 'third lock' - a lock on the synchronizing shaft (aka "sync lock") that would prevent reverser movement. The newer aircraft (787, 747-8) have a similar lock but it's on the T/R guide track (aka "track lock").