Players get rained down on if they are seen smiling and generally looking happy after a defeat, and they seemingly get rained down on if they cry. Players are berated for having poor body language and/or looking disinterested, but now if they look upset, it's too much? It's as if they are walking an emotional tightrope of what is allowed and what isn't (according to fans), and I think we are expecting a little too much of footballers to not express any sort of emotion in what is a sport that is fueled by a great deal of emotion and passion.
I think it's unfair to throw at them "there are people dying in the world", as if that would enter their thought process at the moment they begin to show any sort of emotion on the pitch. Footballers are trained to be entirely focused in that moment, concentration and mentality are arguably equally as important as talent, so when that moment capitulates, it is not surprising that such emotion and anguish is expressed. Players train and train with the ultimate goal of winning the biggest trophies, they dream of it since they are young and the sacrifice a lot to reach that point. Salah might never be back in a Champions League final again. That might have been his only chance, and that might have been the very thought running through his head as he had to leave the pitch, as well as his team mates and the fans he may feel he is letting down. It's a crushing thought.
I have no problem seeing Liverpool get beaten by any which way possible and I'm glad Madrid won regardless of how it happened, but I did feel for Salah individually at that moment. He's had an incredible season, he's broken records, played in just about every game, somewhat carried the team all the way through the year to reach that ultimate stage, and all the pressure that must have been on him to deliver will have been enormous. He got hurt, and he tried to continue, and he couldn't. The guy must have been crushed, and I don't know how someone could have kept that in. I guess he could have taken the manly option and punched the ground and kicked a water bottle, but even then, he'd probably have been dubbed as 'throwing a tantrum' or something, because men and emotions = oil and water. All men should just be like Action Man. One plastic-moulded permanent grimace.