DR was a mistake to begin with. It would be fine in a series where the author isn't afraid to kill characters off as there would be a moral conflict for those having to fight their friends turned demons.
Now that DR characters literally get back in perfect health after being "killed", there's literally zero reason to not go all out
One Piece writing in a nutshell. Nothing ever happens unless it can be reversed with zero consequences.
Kaido beheads Orochi? It’s okay because Orochi can regenerate
Kizaru kills Vegapunk? It’s okay because Vegapunk has clones so he isn’t actually dead
Shiryu kills Absalom? It’s okay because Absalom was already a corpse and Moriah can just revive him
Ace dies? It’s okay because Sabo is his clone so Ace isn’t really dead
Luffy obliterates Sommers with a punch? It’s okay Sommers can heal, Luffy can never actually obliterate a human who can’t regenerate
Imu blows Broggy’s hand off? It’s okay because now all the damage has been reversed so Broggy may get his hand back
One Piss is garbage