The Sim is confused.

after penalizing Reed for the Coors field factor.... probably worth about .400 OPS by itself; and then also taking into account the penalty for overuse as a platoon-L player, the sim has had to deduct so many points from his OPS that it went below .000 and wrapped around to 1.500 thus confusing the simulation.

:-)

And if anyone buys this explanation I need to talk to you about a real estate deal in the middle of the everglades.