I strongly disagree with this.  What youâre asking for is to dumb down tanks to the point that theyre mindless. In fact, as a druid, Guardian is dull enough (I used to loveee playing my DH in comparison to my guardian, despite my  guardian clearly being tankier), I would prefer it not to be reduced more to the point that we dont need to know how to play to survive.
In general, you should know how to optimally use abilities to optimize your survival, this is part of improving on an individual level and shows growth in your capabilities. What you are asking for would be to remove these things, removing the reward that comes from knowing your class/spec, in order for tanks to be able to focus more on tank mechanics that usually arenât too demanding in the first place (tank swapping usually isnât super complicated)
As a former tank main in SL and also a raid main tank in older versions of WoW (Classic, TBC, WOLTK), I would say that in a raid the responsibility is NOT just on the tanks and probably never has been.
You can be the greatest tank in the world but you canât control whether or not the DPS step out of the flaming meteors coming to hit the ground. The same can happen to healers. So now you have a situation where the tank is alive and others are dead. How is that your fault (itâs not)? There is shared blame in a raid.
The one single thing I can say: I played in SL Season 1 as a tank main (guardian druid and demon hunter). I just returned for SL Season 4 not long ago with the goal of completing mage tower, then decided to push for KSM in mythics while I had an active sub. I intentionally refused to tank because I had visions of having to learn the optimal mythic routes for % in Season 1 with the prideful buff etc. You would request to join a group and literally have people ask âWhat is your route?â and I just could not be bothered to learn all these new season 4 instance routes before being able to progress for KSM.
Tanks have a responsibility in mythics for making sure they have a sensible route, I can say its possible some people are like me and donât want to have to figure out the routes (I was only running mythics for ~2 weeks), but I doubt that creates a tank shortage and I also donât think tanks have any unnecessary blame anywhere (even with mythic routes: you run lower keys, figure out your route once, and then you can pretty much use it indefinitely-- not as big as an issue as I was making it out to be). A tank problem is likely that the âtankâ is usually supposed to be a pseudo leader and not everyone wants to lead, they just want to play the game. The two go hand and hand with each other so itâs sort of difficult to address, but you can easily have someone leading a raid that is NOT the tank, and everything being structured right is THEIR responsibility, not the tank.
Tank responsibility is pretty straight forward in mythics (having a route, holding agro). If the tank dies it is often because the pull was too big, or the healer wasnât on top of healing (or didnât expect the burst). The bigger problem is actually when DPS die. Your tank can survive, your healer can be healing, but if all the DPS are dead then you probably arent going to kill any boss efficiently. In fact, DPS dying too much or failing mechanics can commonly cause you to not time a key (Similarly, battle res goes on cooldown. If you have to keep ressing a DPS and suddenly a tank or healer dies, then what?)
Please leave tanking as it is, and review tank specs with less engaging gameplay (Guardian druid would be a great starting point)