Agreed and even more correct as I was wrong on recalling the amount of time left - 10 seconds remained at the start of the play. That makes the Saints tighter D formation understandable. This was 43's responsibility to just make the tackle and he just completely blew it. He didn't need to break the pass up, just make the tackle on the spot.
The slo-mo replay is even worse for 43. He also takes his own teammate, #20, out of the play who was slightly more than 2 yards from the receiver and already had some momentum toward the receiver (while the receiver's momentum was more toward the sideline). #20 definitely has a chance to make tackle to at minimum force an approx. 45 FG try.