I'm less worried about the numbers, and more worried about what it does to the leadership structure of the rifle squad. Used to be that a Corporal led 3 other Marines, and the Sgt. led the 3 corporals. Now a corporal will only lead 2 other Marines, and the Sgt. is burdened with two other Marines to lead in addition to his 3 fire team leaders.
Don't like it.