I think focusing on different ways to calm down is going to help a lot more here AND set up for success in the future. I put this in another comment, but I utilize the following when my kid gets wound up:
Going for walks
Cuddling and hugs (I always ask if he wants a hug, most of the time he will say yes. If he says no, I move on to another suggestion)
Talking about and identifying our feelings (It looks like you're feeling angry right now. How does it make you feel when XYZ happens? When I feel ____, I like to do _____ to feel better, do you want to try? etc, etc)
Drawing a picture of how we feel
Taking deep breaths (breathe in through the nose, out through the mouth)
All that to say, I'm not a parent that outlaws screen time. As an adult, I will often watch a movie for comfort or something similar. It's certainly one way to help distract, but I don't think it should be the ONLY way.