when you are a hardcore fan of a baseball team, playoff games are simply 9 innings of torture.
If you get ahead, you can't run out a clock, you can't take the ball away from the other team's offense, you are more subject to a complete lucky bS play completely turning the game around (such as broken bat bloop double),
if you get behind, you feel like you are climbing up a a hill protected by a Zombie army that will slowly choke the life force out of you, one or two outs at a time. You cant "open it up" and "take chances" to get back in the game, in fact you have to play MORE conservative when behind. once again, you cant "try harder" and just "take the ball away" from the other team...and worst is the feeling of impending doom if the opposition has some bullpen monster like andrew miller looming in the shadows to sniff out any hope of survival