Why does everyone blame the tank?

[Kazumac]

If the tank dies, its the healers fault.
If the healer dies, its the tanks fault.
If the dps die, it is their own damn fault.

This is an extreme over simplification and does not apply to a lot of situations. I wish people would stop using it.

To the OP I really feel like people blame others like that when they have no idea why a wipe was occurring. Blaming the tank or the healer is the easy out in those cases. It is sad but true. If they could identify the issue they would have offered real advice but since they couldn't they just blamed the tank basically by saying "do better". In that case they can be ignored lol.