Even passing the physical standards, they would still have a negative effect on the morale and behaviour of the troops as a whole.
Listen, if you want to standards to be equal (which you yourself agree stated), then those women who pass those standards should be able to handle any responsiblity that their male counterparts can.
And about 'effect on morale and behaviour of the troops as a whole': They said the same thing about that on the issue of race, which was proven wrong.