Here Comes Tomorrow said:
Whats the deal with people being offended by women writing forceful males in womens romantic fiction? That sounds an awful lot like being offended on peoples behalf and fairly regressive honestly. It's fantasy so just let them be happy with their time travelling werebear stories.
Though I will say my partner was pretty angry about Claire's daughter being raped in the Outlander show as she said the book gives the impression that she just used sex to get what she wanted and had sex willingly. The shows writers obviously consider rape a Fraser family tradition as the three of them have all had it happen now.
Its not the assertiveness, which more times than not stuff made by females for females will tell you is hot. Its the fact that they seem too forceful, or a situation where the consent is questionable at best. This works both ways, as what is plaid off as cute in Queen Latifa's Last Holiday came off more stalkerish than cute in the same way Edward Cullen comes off for excample.
The rape issue is one that is troubling on a number of issues. No I have not seen Outlander, but Game of Thrones had a simalar one with Denaris' consummation with Drogo. It was more mutual the first time around and the book as Marital Rape. Only got through the first hundred pages of the book before had to turn it back to the library, but if the rest of their sex life is anything like the show, where Jason Mamoa tried to break the tension for Emilia Clark by wearing a bright pink sock on his member. It worked. but she laughed too much for the scene so Mamoa was asked to stop.
As for Minimalism argument: It can have some hillarious unintentional consequenses. Remember the WTFIWWY eppisode that dealt with the Year of the Butt Monkey?
Anyways before I went, SQUIRL!, this seems to be a problem. Can't think of a better way to add tension to a scene? Rape!! TV Tropes has a whole trope of it called Gratuitous rape, that sums it up as: Unnecessary amounts of forceful coitous (does not add to the character or scene)