If you’re getting that upset over a player not taking the ball to the corner to secure yet another late 1-0 victory, to the point where even the ref has to card you, you got some serious problems.
I dont get why this is a big deal. Its his job to hold them accountable, how to do it is different from coach to coach (and for me most approaches are fine, some coaches tell player this during training, others do it during the game) , but its needs to be done.
Because we seen what happens when our players switch off and act lazy/indifferent in end of game sitautions. Dybala losing ball/letting it go out lazily end of Lazio game last season (or the one before? think actually it was Simeone Inzaghi was their coach so years ago?) , same throw in Lazio then score from. Or the fuckery that happend a year ago, vs Sassuolo, at home, leading them to score the winning goal with the final play of the game. All because we were so just so entitledly lazy end of game, like it was over already.
Allegri is overly pragmatic, but its necessary, the game isnt over til fat lady sings, and you need all the arsenal in your armour to make sure you get the result, including playing it safe or time waisting end of games. Its his purpose to instruct them on that, we judge him on it. Keep them mentally focused on the task. And a young player needs it more because they arent used to sitautions like that. It wasnt a big deal, but Soule didnt cover the ball and lost it needlessly. And after Allegri shouted at him, he adapted and held on to the ball near corner flag later, making sure we get the corner.
And he didnt get a yellow for shouting at his own player, he got the yellow for going outside the technical zone. It was prolly not the first time during the game, so he was penalised for it.