The zero tolerance stuff has a reason it's treated with zero tolerance compared to other behavioral infractions.
Derogatory slurs? Offensive towards a group of people regardless of how it's used. Not things that should even be considered being said in a civilized conversation with strangers.
Telling someone to kill themselves? Telling someone to commit self-harm can be extremely distressing to anyone that's been (or is) on that edge or someone who has/had a family member in that situation. That disregard of any empathy by another human being can easily hit a lot harder than the speaker intends.
Telling someone that the game was easy? I don't see any reason that it should have an elevated punishment anymore than saying, "Your team sucked".