Well firstly, it's not censorship. DC owns Wonder Woman. Cho is an artist for hire who was hired to commission a series of covers. It's not free-speech when you're working on commission to draw a copyrighted character owned by your employer.
Secondly, Cho quit, he wasn't fired.
Three, what he quit over seems really minor. A slight cropping of one cover so that a small portion of Wonder Woman's bum and pants aren't shown.
Fourth, on model isn't the same as appropriate context. If you drew Wonder Woman on model but directly from above so you could see her breast and nipples pressing against her breastplate, that wouldn't be okay as an appropriate comics cover. Similar if you drew her from directly below so you could look up her skirt and drew a detailed outline of her vagina pressed against her knickers. Now Cho's drawing was nowhere near as bad as either of those example, but then the reaction of slightly cropping the image to take away the bit that was objected to was hardly extreme either.
Taking all these points into consideration, unless something new is revealed then based on the information available Cho is pretty much just a whiner.
Secondly, Cho quit, he wasn't fired.
Three, what he quit over seems really minor. A slight cropping of one cover so that a small portion of Wonder Woman's bum and pants aren't shown.
Fourth, on model isn't the same as appropriate context. If you drew Wonder Woman on model but directly from above so you could see her breast and nipples pressing against her breastplate, that wouldn't be okay as an appropriate comics cover. Similar if you drew her from directly below so you could look up her skirt and drew a detailed outline of her vagina pressed against her knickers. Now Cho's drawing was nowhere near as bad as either of those example, but then the reaction of slightly cropping the image to take away the bit that was objected to was hardly extreme either.
Taking all these points into consideration, unless something new is revealed then based on the information available Cho is pretty much just a whiner.