He's saying that while the are a range of outcomes from this type of injury, you are choosing to take the most negative and run with it. To this point, there is no indication that the most negative take (yours) in the correct one, so why spend so much time trying to convince us it is the current reality?
Milano was able to get through 3 full practices. Only at the end of that period has he shown some irritation. My guess is that this is pretty good news. He's gone fully on the knee in a football setting for 3 days and now he'll probably need some rest to let the swelling come down.
Nothing here indicates worst case, and that's why people are calling you out.