What I do not understand is if an illegal shift occurred on the previous play that resulted in a first down, why wasn’t time, in this case 5 - 6 seconds, put back on the clock? After all, an illegal shift occurs before the play starts.
An illegal shift does not stop the play the same way a false start does.
Also, with a running clock and less than two minutes to go, a false start penalty requires a 10-second run-off of the clock, which would have ended the game.
Don’t they run time off the clock if there is an offensive penalty in the last minute?