Why on Earth is Hasbro still using those horribly over-sized helmets on the clones? Good grief.
It was an over-reaction to the Clones that had been released in the Episode III line. Those Clone Troopers that had removable helmets looked okay with the helmets on. But with the helmets off, they looked like pinheads.
You have to suspect that some of this is rooted in the fact that the Clone Troopers were all CG in Episode II & Episode III. The helmets never had to be a practical prop that would be put on or removed like the Stormtrooper helmets of the OT. If you look at a Clone Trooper image side by side with a Stormtrooper from the OT, you're going to notice a significant difference in the size of the two helmets. The Stormtrooper helmets are much bigger in comparison because of the needs of the practical prop. The Clone helmets in contrast don't appear to have been designed for practical use. And it looks as though that sizing issue has had the added effect of impacting the Clone Trooper action figure when there's a removable helmet in the mix.