Really bad news. Javier's art is very powerful and, of course, his art made this game one of the most interesting in the visual part and one that stand out from the rest.
Regarding his reasons for living the project, indeed, drawing pornography does not seem to be the only one, maybe not even the main one ... But if it is, maybe his original idea was to do something more soft-erotic, no explicit pornography. The point at which something goes from being erotic to pornographic is unclear, something even very personal that depends on the eyes of the observer, but in general it could be said that pornography is when penetrations appears, detailed close-ups of the sexual organs, ejaculations, etc ..., and erotism when the thing are more insinuated and subtle, shows you less and let your brain imagine the rest.