Death Knights can tank with a 2-hand weapon. Warriors can not, Paladins can not.
I joined this game with BfA and played back then exclusively Tank because I love the gameplay of a Protection Paladin. But now, after Shadowlands I don’t want to ruin my transmog and pick something else than the Kyrian 2-hand mace as weapon.
So I am kinda forced to play Retribution (which I am fine and technically good at) or Holy (which I don’t like to play because it is in a weird design spot).
I would love to go back to Protection Paladin and be the Tank the other players wish for so desperately in queue times, but not if I have to run 1-hand + shield.
Blizzard could add certain passives to the skill tree or by default to make it work. For example, Frost Death Knights have a passive skill called “Might of the Frozen Wastes” which describes as follows:
Wielding a two-handed weapon increases Obliterate damage by 30%, and your auto attack critical strikes always grant Killing Machine.
Now I am sure this skill refers to dual-wielding 2-hands, but you get the idea. Such a passive applied to Paladins and Warriors with fitting additional skills that require a 2-hand, could work pretty well.
And I am mostly certain that some Warriors and other fellow Paladins would also welcome a change to the Weapon restrictions for effective Tank play on their classes.
When I am thinking of a Fantasy Class as Tank, I am not thinking of a Warrior or Paladin with a huge shield and a tiny sword. I am thinking of a Warrior or Paladin with thick armor, a talent to anger the opponent into focusing them and keeping hits away from their allies. And that doesn’t need a shield.
Gameplay-wise, you can just compensate the missing Block-stat from the Shield with an equal high amount of the Parry-Stat for Paladin and Warrior Tanks when running 2-hands and a slightly boost to Stamina.
It ain’t that hard!
Edit: What some of the readers here seem to misunderstand with my idea is that they think I want to make 1-hand + shield useless and 2-hand better. No, I don’t. I want people to have more choices with their very own character and how they can play. Opening up the weapons restriction DOES NOT mean players would then only play 2-hands as tanks now. They would still play what they like. If you like your 1-hand + shield more, you still can do it if you wish to. Just let others have their fun choice too.