Seems like Hasbro's approach is to make the huge Devastator simple, while the non-combining Constructicons detailed with full articulation.
For $100 I'm still confused as to why the Constructicons in the combining set were not made to transform and be as detailed/articulated as their non-combining counterparts. If the Devastator figure is not extremely stable, rugged, and sturdy, then the simplicity of the toy becomes redundant(this is of course, along the lines of thinking that everything was compromised for the sake of durability).
Devastator is a disappointing figure, most disappointing one I've seen from ROTF so far, I was ready for the design itself to be shocking, but not the simplicity of the toy, I wasn't expecting that at all for the price. Unless I really like how he is portrayed in the movie and the toy turns out exceptionally rugged and fun to play with, I won't be buying him.