For starters it already has such a mode in the opposite direction
That is because that mode is the "I don't care about the gameplay, I just want to experience the game without caring about combat or strategy"
Why bother putting effort into the "Why bother?" mode?
Tactician itself had health modifiers
It also altered the enemies, changed around their abilities, added entirely new enemies, changed their layouts, and a bunch of other things.
And most importantly, it doesn't affect you at all if you want to play tactician mode because tactician mode would still exist.
Perpetuation of laziness and low effort band-aid solutions to difficult doesn't affect me as a consumer?
I'd say I am very much affected by it as a consumer. Can you even think of the last game where hard mode actually was different?
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There are games where the only thing they did was increase stats where I was entirely ok with it, but that is because it fundamentally changed the way the game is played and not in a bullet sponge or "overly dangerous bullet" way.
Yet that isn't Divinity Original Sin or Divinity Original Sin 2.
