Yes, if it was a direct boot then it will say who the booter was in the orders panel.
However, looking at your game settings, the direct boot and auto-boot are the same meaning that any booting would be done by the computer and not by a human. Thus there is no one named in the order panel since it was automatic.
Sucks for your team but you have only your teammate to blame and not an advantage-seeking opponent.
Anyone on vacation is protected in your game, so I would guess that he was on vacation when he went over the limit.
My personal favorite settings have two days direct boot, but three days auto. Plenty of time to take a turn if you can't get back the same day, but a little leeway if the other players don't feel the need to boot. A short autoboot will always lead to lots of boots that at least some of the players don't want.
No, I checked that in the game before I asked his team if they had heard from him. I think there is an issue. There is a V in front of the name when they are on Vacation and he did not have that at the time.
It appears that the auto boot is booting at variable times rather than the times set in the settings