God of Marz, Rachel Shaw’s new play presented by Red Planet Theater Company, includes a warning upfront. A voice-over eschews the usual no-photos and no-cellphones reminder and (ungrammatically) informs the audience that “nothing the characters say or do does in any way reflect the views of the author, actors, directors, stage managers, costume designers, or the venue of this production. Some may find the material offensive and, if so, please leave quietly with no regrets.” Aside from the assumption that the play then does reflect the views of the lighting and scenic designers, for instance, some audience members might harbor an expectant thrill of an inflammatory evening at the theater. Alas, that’s not the case.