>>59817803P toys are largely designed via CAD (Computer Aided Design) As a result, you can just about create a viable transforming toy without needing to draw anything yourself.
If you look at the Has/Tak side of things, especially Hasbro, a lot of people are hired based on their ability to draw, even if its not particularly well. Since Takara handles the engineering, all that's really needed from hasbro is an ability to understand manufacturing(which is why a lot of Hasbro designers have backgrounds in industrial design) Otherwise, they're wanted for their ability to create interesting ideas. Neither Archer or Warden are great artists(though Archer's a lot better recently). And on the takara side, alot of the designers are also pretty good artists, or collaborate with artists/