Unbelievable! The R rating is for language.
The rating is about swear words. If the swear words get bleeped, they’ll change it. The MPAA is saying, whether they would put it in these terms or not, that it is more important that a parent or guardian be present to contextualize too many uses of the F-word — and be informed that their kid will be exposed to that — than it is that a parent or guardian be present to contextualize an 11-year-old committing suicide, and that the parent know that the kid is going to watch as the parents of a dead teenager tour the bedroom where he died.