I'm certain
Neutral Corner has way more expertise in this matter, but you're always at some risk of something going very wrong during surgery, mainly because of other factors (age, health, etc.). You just don't expect an 18-year-old football player to be on the wrong end of the dice roll.
I think the fatality rate for my prostate cancer surgery is about 1:1000, but that takes into consideration the number of extremely elderly men with chronic medical conditions who have a heart attack, stroke, pneumonia or sepsis. My odds had to have been significantly better. But I won't lie and tell you I didn't have at least a passing thought that morning that I might "go to sleep" and not wake back up.
Even something as "simple" as having your wisdom teeth removed results in around 3 fatalities per 1 million operations.
I hate it for the Roper family because as
Donny in his element mentioned, there was no way they could have known -- or imagined -- such a rare situation would turn out to kill their son.