is it a new trend to see bot tanks?

got a few groups where i saw tanks completly automated.

1- no answers.
2- no reactions to <se.1> alarm spams by the whole group
3- keeps running into pulls without the healers or dps following
4- dies and runs back into the same pull that killed the tank without even stopping to see why no one is moving.
5- i found the same bot tank twice in a row during two instances yesterday morning same pattern.

anyone else encountered such an issue?