Okay, I agree, for FPS games I've player, generally the only 'tension' in an escort mission is the constant fear the AI will screw up (sometime inevitably) and get themselves killed for stupid reasons. But in flight sims, escort missions have generally been pretty good, even going back a way.
I'd totally be up for AI escort missions. As someone here mentioned, pretty much everything is optional in ED, so you wouldn't have to do them.
In fact, pretty sure I saw someone mention one on this the forum a little while back what I thought was a really good idea, an escort mission from one settlement to another (near by) where 'the package carrier' can't SC because 'reasons'. So there was far less risk of instancing failure or losing the target. It actually kind of reminded me of G-Police escort missions where some missions were protect aircraft, others were air support for a convoy or VIP limo. This might also solve the 'letterbox AI fail' issue.
To add, I'd also like to see player wing missions, where the cargo is 1 lump of say 550t that has to be taken in one go by one ship. Large enough to make it at least tricky for one player to tank it, so the bigger your wing, the better your chances. the payout shared like any wing mission.
Anyway, yeah, would like to see escorts missions.