Since when was it the Tanks job to explain fights?

[dayspring83]

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I got annoyed when someone, AFTER the wipe asked "What are snares?" If you didn't know, ask before the first run. A Steps failure is 15 minutes out of my day for no reason.

I told people it wasn't my job to explain every single part of the entire duty. (Please note, I had tried my best already, not everyone is gifted with the ability to really teach something.) At which point I was told to "Man up and explain it, because you are the tank". Note, the OTHER tank wasn't getting any lip.

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TLDR:
No where in the job for tank is "Know and explain any duty someone doesn't know."

It's not. Unfortunately you got grouped with some ignorant people. It's not anyone's job to explain the fights. Either you go in blind or you research the fight and then ask for pointers. It's certainly anyone's right to want to go into these fights blind, but you cant say "I dont want to watch videos" and then expect people to explain the fight.