He was out for the year anyway. Basically the quitting part is because he's dropping outta school.
I think he had a small chance to come back for the final 2-3 games, and a very good chance to be back for the CFP. Surgeon said he would assess the progress in the first week of November, and if all was good then he could have been cleared to return.
That being said, I don’t blame him for his decision, his pro earnings potential comes first. But, him being the #1 overall pick is certainly weighing heavily here. If he was only a 2nd or 3rd round pick, he’d 100% definitely be back this season, or by the postseason at the absolute latest. If that wasn’t the case, he wouldn’t have had to make such a “difficult decision” that his dad said weighed heavily on his family. This is a business move plain and simple.