Jaylon still has plenty of time left to get himself fully prepared for the season. There's no harm in allowing him as much time as ne needs to get ready. Whether that means he will or won't be ready to start for the season opener, so be it.
In the meantime, he's doing all that he can, while the reports keep coming in constantly that say he's making steady progress. It seems to me that that should be good enough for now, without so many of the cynical comments that seem to persist here.
The truth will be known to all when the time comes to see him in action. Simple stuff, really. Why not give patience a shot?