Would it be more gentle to go to idle first and then apply full thrust? What would be the air flow dynamics inside the engine then?
Nick
Your engine is going to transition from reverse thrust to (seek) idle as you drop the levers then seek thrust settings. The engine spooling up or down as fwd thrust or reverse thrust is selected is the largest factor as I see it.
The reverser's move faster than the engine can spool up or down. Gentle is beyond your control when in this condition, going to idle will do little when faced with a go-around, rock and a hard place. Down to the PIC decision to over run aground or take a chance on an engine surge. Speed, Rwy length, Rwy performance, sounds like Airbus made a statement to reduce their liability in a situation where a (wheels on ground) go around W/O reverse thrust should have been made.