My guess is the possibility that he was rushed, or just doesn't take too much concern since art is usually censored in the magazine release.
color releases in magazines are even given a full blur effect. Sometimes for book releases (Like with SAVAN's last book that we released) an artist will go back and add details to the genitals because the censorship is less intense for a book release than a magazine release. think big white out censorship vs a thin black bar that may even be transparent.