Well, that is more light BDSM than rape. We all knew she was a dominatrix.
So what is your definition of toxic masculinity then? Because imo, Lae'zel clearly has it. How would a sex scene with a masculine guy that was requested be any different?
Toxic masculinity goes much further - and I did mix three characters traits together, including hers, to give an example earlier. But look at a Proud Boys rally - every single person there has toxic masculinity. They want to just intimidate anyone who disagrees with them and kill anyone who stands up to them while they yell and wave their phallic substitutes around.