Josh holding the ball sets him up to get big chunks of yards, and it works. Teams tried to disguise coverages and that didn't work and Allen still carved them up.
If Allen holding the ball longer continues to result in wins, i don't care.
At this point in his career, he's not going to be a dink and dunk passer that gets the ball out just to get the ball out. Maybe 10 years from now, but not today.