USCIS doesn't 'expect' anything. It's up to couples to research and plan for themselves, and for many, it is why the CR-1 is a much better visa. It's a shame that you didn't come across that in all your K-1 research.
The EAD/AP issue and problems in some states with getting driver's licenses are well known drawbacks of the K-1.
If not working is going to be an issue, you may want to consider marrying now and petitioning for a CR-1 instead. Even with the 'lost' months since filing the I-129F petition, the way timelines are right now, he would be working sooner with a CR-1.