Wingman formation command should be interesting.
Flying in formation isnt all that difficult with practice and people you are familiar with. Not to mention a lot of fun.
Most people are just too lazy to do it. The key to maintaining formation is the flight leader acting as a leader and being responsible enough announcing what he is doing ahead of time. Again. Most people are simply too lazy to do it.
The group I used to fly with (Pale Riders) With Wind, Zank, Nads, agflit and the rest we used to do it all the time as a matter of standard practice and we got to be really really good at it.
Sometimes we would do it and trick the opposition and often even friendlies into thinking we were a group of buffs till we got close enough to ID.
I'd highly recommend people try it even without the auto feature. Its a blast to do and gives you something to do on some of the longer flights adding to the immersion level.
The auto thingie I can see coming in handy when someone has to go afk as one of its largest benifits