Your accusation is not offensive, but your presumption to judge on more or less zero evidence IS.

This is stupid on many levels.
- R-ratings apply to motion pictures, not novels.
- There is no rating system for books, and no one has ever formally claimed that WoT adheres to a certain defined level of adult content.
- If there WAS an rating system, or WoT was portrayed in film exactly as it is shown in the books, the scene to which you refer would very likely not receive an R-rating, because it did not show anything. Off-camera rapes, with little or no description of the act, do not incur such ratings.
- If you only realized the Myrdraal habitually rape human women as of book 13, you are too oblivious to be passing judgement, since almost from the very beginning, allusions have been made to this practice, in as tasteful and sensitive a manner as possible, given the topic.
- Given the above point, and the fact that BRANDON SANDERSON wrote the book in question, your assertions of Jordan's misogyny are really off target.

Yes, many readers are stupid. That twit beelaa, for example. The legions of Egwene's admirers, for another. So what? I do not let the stupidity of people who share my appreciation for this series affect my opinion of it, or deter my enjoyment.

Anyone serving the Dark One of her own free will is evil and deserves whatever happens to her. This does not excuse any evil that is done to a Forsaken or Darkfriend, but their victimization does not change their guilt or make them worthy of pity.
Graendal in particular deserves her fate, because of her oft-cited practice of using Compulsion to create live-action porn for her own enjoyment.

Name two.

In the first place, there are maybe two male "Forsakens" left, and most of them did not fail while he was around, so the opportunity has never arisen. Most of the males tend to die in battle and suffer their own penalty for failure that way. How many female Forsaken die in battle? Where is the famous Jordan balance NOW? Because most people would rather be raped than dead, since you can walk away from the former (if somewhat awkwardly).