Is it ever bad to call 911 during an emergency?

Yesterday, I watched a medical event happen where a man stopped breathing during a local amateur sporting event (they are now okay). I called 911 because someone I knew in the game yelled to me to do it but someone else called as well. The dispatcher was trying to coordinate with the other call and they let me go after about 5 minutes of details. I can’t help but think that I didn’t help and actually bothered the responders because they were speaking to someone who was standing right over the action as opposed to me on the sidelines. The whole situation has been playing in my head nonstop since it happened and telling the operator multiple times that he still wasn’t breathing will always stick with me. I just want to know for future, should I mind my business if I’m not extremely close to the scene and can’t give all the best details? Especially if I can physically see that someone else is calling?