Although I agree with much of what the report says a conversation with a retired admiral mitigated my negative opinion to a point. He stated that there is also a need for quality personnel to staff the boats and excluding women precludes many capable personnel in a very competitive and difficult to staff service.
I have heard this argument; this assumes that the hit to men who volunteer for submarines or continue a career in submarines is equal or less than the women who want to serve in the submarine force.
I'm skeptical of that, particularly because as I pointed out, I haven't encountered any women who were itching to serve in the submarine service. But, for better or worse, I have encountered a lot of enlisted submariners who volunteered strictly to be in a rating that doesn't have to work with women. It's anecdotal evidence, sure, but I'd be interested to see a poll on that across the fleet and some data on what actually happens.
As far as the quality of an entrant: If the submarine force has X slates for women, and Y women volunteer, and Y < X, then your quality will go down, not up. It is the same problem that the nuclear Navy and submarine force faces with men, you're just splitting the quota by gender now. The first group of women had a 100% selection rate from USNA -- not a super-selective process. But maybe every single woman who applied had a 3.5+ GPA and was a rockstar. I have seen what happens when the sub force 'drafts' new Ensigns and it was essentially a gigantic waste of taxpayer money trying to force people, some of whom had reasonably high GPAs in non-technical majors, through a program that they had no business actually being in.
It also takes more female JOs to make a DH because females leave the Navy at a higher rate than men. DH are the critical officer billets that the sub force typically has trouble manning. That means that you either have to A) pick more women and increase the number of JO billets or B) lower the DH (and eventually CPO) screening requirements when your overall retention suffers from women leaving the Navy at their historical rates.