I'm pretty certain all the tanks are talking about stat issues right now, such as the vit/str issue and also tenacity being absolutely worthless of a stat. Both War and Drk don't really care if Paladin is good right now, they just want their jobs either fixed or balanced properly. A simple example: Dark Knight's Dark Passenger's mana is too high, it's literally never used due to two abyssal drains being better. Likewise, if there's an enmity struggle now (Sam's take way too much threat, RDM do it too fast), then that's not a "git gud" thing, it's a balance problem that players are putting up with.

In general people need to get over this attitude of "you had your time in the sun so you deserve this". It's not like these players MADE anything weak or strong, it's the devs. Furthermore, telling people to shut up and play something they no longer like (but did), is incredibly rude and is a good enough reason as any to never tank for you or anyone else with said attitude.

If you guys want shorter queues, I don't get why you'd want to upset your tanks so much that they'd switch jobs (most to Sam as I've seen). Honestly, having all the tanks balanced and good seems like a pretty good move for the playerbase as a whole.