And why do we worry about AOR so much...?? The race has just begun. So many obstacles and milestones to be covered yet. We shouldn't be worrying much at this moment. The real wait game starts when our file is submitted to home country and background check starts for spouse... By then, everyone would have submitted everything, everything would have passed and our job is done except sending Passport (By PA).
Let's imagine that we all have submitted our applications on same day, same time, and after successfully passing all milestones, our files are submitted to home country visa office same time as well, even then everyone will get passport request at different time based on their back ground check timings based on their individual scenarios. So we should just follow general average time duration for each milestone and try to Sit Back & Relax..
Just my Two Cents..