I saw the show too. Since when is theatre rated? There are a lot of dark themed plays with plenty of nudity that are not restricted. The nudity in HIGH is brief, although it is male frontal. There was more nudity in EQUUS.
I can guarantee no one will be carding at the door. This is marketing.
Personally, this smells like a marketing ploy to get people into the theatre thinking it is more provocative than it is. Mamet plays don't get R ratings, so why should this?
This smells like an attempt to get people into the theatre to see nudity and foul language. Sadly that does sell seats. Its a tough market right now and whatever sells seats.
Warnings like that totally cheapen the show if you ask me. Mature theatre goers can handle coarse language nudity. Those who can't will walk out.
"The sexual energy between the mother and son really concerns me!"-random woman behind me at Next to Normal
"I want to meet him after and bang him!"-random woman who exposed her breasts at Rock of Ages, referring to James Carpinello