Your example is a good one.
Another consideration that goes unsaid is the fact that we are facing a very downsized, all volunteer professional military.
Given that there is a serious limitation on the number of soldiers we can maintain at a given time, we simply cannot afford to carry any dead weight.
Open slots for the military are becoming increasingly rare and recruitment is becoming increasingly competitive.
Our military recruitment should become more in line with tryouts for a football team where many try out and only the most talented and strongest candidates make the cut and win the job slots.
The days when we could turn the military into a big social welfare jobs program are coming to a close. If women can compete with men for open slots head to head and win, more power to them, but due to force downsizing we really need to set a higher bar for military induction to make up for lower numbers of soldiers.
In summary, my opinions on this cover everything from mission capability, to logistics, to unit cohesion.
And, I agree completely with your last paragraph. In a shrinking military environment, they should individually be more capable, not less, which is where we are going by diminishing the standards.
If you haven't seen it, one of the best articles anywhere is this one: "Women in Combat: The Question of Standards" by Jude Eden (USMC)