Moreover, as has been stated repeatedly, and repeatedly ignore, Emily and her husband are not near or total strangers to each other. Since the policies we are discussing are for college campuses and those oh so important "hook-ups", then yes - the individuals involved will need to be more precise. No one has ever said otherwise.
This is an unworkable standard.
it is the ONLY standard that works, and I suspect it is exactly what you have practiced all of your life whether you wish to acknowledge it here or not.
The problem with an unworkable standard is that people don't, in practice, follow it. Which means it doesn't help prevent rape. What it does do is stop people following codes of behaviour that do help prevent rape.
Normal, rational, non-rapey people do, in fact, get explicit and on-going consent the vast majority of the time - particularly when they don't know the other person very well - whether they consciously realize it or not. As partners get to the point that they do know each other very well, like Emily and her husband, then perhaps the communication can be more implied and less expressed - but they will
still be checking for consent if they care abut each other.