From all the reasons you can possibly have to nerf a spec (any spec), you probably chose the most inconsequential one.
Congrats!
Your comment represent your guild name most adequately.
First, no one cares about what a spec does in heroic dungeon queue.
If you got an toxic player with you, use the vote to kick feature.
Secondly, the tank spec HAS been nerfed, substantially in fact.
That’s a lot of defensive power gone, they shouldn’t kill a spec when it’s over performing.
We’ve yet to see if it needs more because its the first week of both raids and M+.
So sit back and take a chill pill.