He resigned, allegedly, because "it was getting simply too difficult to make what he deemed a fun figure while dealing with things like rising plastic costs and price efficiency".
Hilariously that was immediately followed by, "As far as third parties are concerned, Hasbro cannot be influenced by any outside ideas for legal reasons, (he reasoned that "it wouldn't make sense to steal from someone who was stealing [from us]"). Hasbro does monitor the products for legality's sake though, Aaron said they have a binder (a big one by this point) that catalogues all the unofficial toys to monitor them in case of legal injunctions or trademark violations. On a more personal note, Archer said that the Third party companies can make some talented figures, but wishes that they would sell more original transforming toys then trying to profit off of a pre-existing franchise."
And "Aaron Archer is no longer an acting employee of Hasbro, but still does freelance toy design for the company. The latest one he said he worked on was flip and change grimlock, not even the design but just the concept of what he wanted the toy to do (I want it to go like this, then that, then zoop.) someone else designed the toy"
Also, he "really doesn't like the 3p's. calls it IP theft."
From here, just two months ago.
That said, I think Play With This Too is primarily Rik Alvarez - Archer might just be doing some design work.