In the case of Batman v Superman, for example, Terrio says he wasn’t the one who wrote a dark script.
In fact, in the original script, Terrio claims, Batman continued branding criminals until the end of the movie, including Lex Luthor in Batman v Superman’s final moments.
He was also insistent that he did not give the film the “clueless” and “tone deaf” title Batman v Superman: Dawn of Justice.
Or, at least, he wants to make it clear that in most cases he’s not responsible for the stuff people criticize.