LaFleur obviously made a dumb decision.
The Packers needed a TD, one way or another.
What do you think has the better chance statistically of happening:
1) Converting a 4th-and-goal from the 8 yard line, and then converting a 2 point conversion.
2) Kicking a FG, then forcing a 3-and-out on defense, and then marching 60 or 70 yards down the field after the punt in 1:20 with 0 timeouts to score a TD.
I am pretty sure the first option has the far greater chance of success.
The first option requires your offense to make 2 key plays to tie the game and force overtime.
The second option requires your defense to make 3 key plays and then your offense to make some big plays to move the ball 60-70 yards in 1:20 with 0 timeouts.
Many more things have to go perfect for you in the 2nd option.