[lawump]

Here's my early morning stab...without looking at any rulebooks and without the benefit of coffee.

(1) Baker was ejected...not Abel. Baker is the one who argued...no one else. The ejection (and the subsequent fine/suspension are personal to him).

(2) Baker was batting out of order.

(3) Jackson is Baker's substitute. Baker was ejected, Jackson replaced him. Abel is still legally in the game. (Abel is in the game because he's listed on the official line-up: the umpire's card.)

(4) Jackson, as Baker's substitute, is now batting-out-of order.

(5) Jackson completed his at-bat, and the opposing team did not properly appeal. That is, they did not appeal before another pitch, play, etc.

(6) Thus, Jackson's at-bat became "legalized". And the next proper batter is Chambers.

(7) Abel batted out-of-order. The defensive team appealed at the proper time: after Abel hit a single.

(8) CHAMBERS (not Abel) is called out for failing to bat in his proper spot in the order.

(9) Demeter is now the proper batter with two outs and no runners on base. Abel is still in the game, Baker is still ejected and Jackson is Baker's legal substitute.