We have no idea how much something hurts from the comfort of our own homes unless the player jumps up 5 seconds later. Suggesting that something wasn't very painful because they didn't have to go off or got up after a few minutes is silly and I wonder if the people who think thats how thinks work have ever played sports.
Players overreact to buy fouls and cards all the time but they also are constantly getting hurt. That doesn't mean they won't get up and play on.