It's not a panacea to all potential complexities of confidence, belief etc.
You also cannot conclude because the players lack confidence / belief in front of goal at the moment, the psychology dept. has failed. Who knows, without that department we may not have equalised against Wolves, scored...
If he’s your taker let him go again, very rare a player will miss twice. More likely a taker not usually taking them feels a bit more pressure. I thought the same as you, I’d have preferred the German to have made amends.