I suspect because the title is on the line and he was desperate to stay on and contribute. It was the correct call to bring him off, that injury looks nasty and whilst he may think hes fine with adrenaline running through his veins, thats 100% going to impede him, well done to the medical staff/pep for making the call, would have been easy to just accept ederson saying he's fine. A totally understandable reaction from ederson too in my eyes that shows he gives a shit and the management did the correct thing in letting him just blow off steam and not making a big deal of it. Handled well all round.