Can see why you posted as a bug, but you are correct thats its a (very badly) missed vision check.
Firstly defenders in deeper zones have a hard time passing the vision check on outside runs at all levels, so to see something like this early in a players career is not unusual.
Secondly the FS starts the play with very little energy and low morale, this will decrease his performance, and ability to identify and react to the play.
On this play the FS just continually fails the vision checks right up until the HB is at his level, at which point its more or less an automatic pass in this situation.
You'll see similar happening at all levels, when in zone or blitzing, just not to this degree.