Are we are quite clear here regarding commercial aircraft not cleared for in flight reverser deployment ( I recall locking systems were reinforced post the Lauda Air B767 accident).
This report states the crew selected R.T. but with landing gear up there would be no W.O.W. the reverser's would not have deployed, in most types the crew would have felt a baulk in the thrust levers movement aft.
I don't know the A320 specific but most engines, without WOW, would have stayed at a flight idle not the lower ground idle and therefore more responsive to a go around command.