The rating of the Critter Form component has been increased from 6 to 9. The reasoning behind this is based on comparison to the Sleep effect. Both effects completely incapacitate a character. However, sleeping characters can be woken with a common action and Sleep can be countered with Rouse, which is reasonably common. On the other hand, Critter Form can only be fixed or countered by Revert, which is much rarer and more specialized than Rouse.
Apologies to my fellow wizards. I got to use it, and it was awesome, but it was just too broken to stay at such a low rating. ;)