Kill, I don't disagree with you in the least bit. it is the way he said it. You have aptly given a very sound reason for the sequence of exit. This captain was rude and dismissive. It's not what is said but how it is said. Having said that, as captain now I really have no qualms with the effo stepping out first if he/she is done.
Had a trainer ask me the max radius of circles that can be input in the FMC...... and max offset.
The funniest was a trainer asking me on an upgrade LFUS at crz what would happen if we pressed TOGA. I looked at him and pressed the button. I have never seen a pilot jump in shock as I did at that moment.