The 2016 NISVS is one of the most criticized studies of its kind due to a small 7.6% response rate which calls into question its ability to be meaningfully representative. I'm not saying the data is meaningless but it's certainly not to be taken on its own.
Regardless, while all rape is a problem, the fact remains that the vast majority of cases is male violence against females.
It's mentioned as a limitation but is a more general problem with surveys.
And they try to address it
"
several steps were taken to address
potential coverage and non-response bias including
selecting a random subsample of non-respondents
for a non-response follow-up phase and using a
dual-frame approach to sample both cell phones
and landlines. Centers for Disease Control and
Prevention (CDC) researchers also conducted an in-
depth analysis and found evidence supporting the
representativeness of the data despite low response
rates.26"
From the 2010-2012
"
To minimize non-response
bias, follow-up was conducted
with randomly selected initial
non-responders, and higher incen-
tives were offered for participation.
Although the response rates across
the three years remained at roughly
33%, cooperation rates exceeded
80% across 2010-2012; that is, once
an interviewer was able to speak to
a selected adult about the survey
and establish the individual’s eligi-
bility for participating in the survey,
the selected adult likely continued
with the questionnaire."
And speaking of the 2010-2012 survey
For women "Rape Male perpetrators only: 22,365,000"
For men "Rape Male perpetrators only:1,464,000, Made to Penetrate Female perpetrators only:5,312,000"
So again men are in general less likely to be victimized by other men than they are women.
And again when you look at the numbers men still make up 20% or so of total rape victims. A far cry from 9%. And I'd argue that the 2016 survey is still more representative just due to there being more men willing to admit to being victimized in 2016 then 2010-2012 because of changes in social standards. The CDC has done multiple national surveys, and they seem to conflict with your numbers. I'm curious because either your source is missing a titanic number of males victims for whatever reason or the CDC somehow got a representative number of male victims but missed a large number of female victims and reports of male perpetrators. The latter option I personally find more unlikely.