You calling out to completely gut tanks is showing that you really don’t know what the actual problem of the game is currently. The problem is that there are way too many specs that have self-healing and thus each spec is in a situation where they take away from the importance of having a healer. That is one of the primary issues that is plaguing the arena.
I main prot pally and there is actually a lot of skill to properly play the spec, in many respects, it is actually harder than playing ret pally and many other specs. This is because of the requirement of actually doing proper cc and damage mitigation / defensive rotations. If this is not done correctly you will never get kills and you will die before you can get the kills.
Just because you don’t like them doesn’t mean they should not be viable. Let’s have a discussion of why you think they could actually be “gutted” and made not viable.