It depends.
I think this video was what changed my mind more honestly on playing harder modes-
https://youtu.be/OEzx_wtcHAo (Razbuten's "Consumable Items (and why I barely use them)" video, to anyone who doesn't want to click)
Like specifically, I started up Witcher 3 on Deaths March mode instead. But on the other hand, it's still a long game so I can understand why someone who just wants the story would pick a lower difficulty so they can roll through it easier. But to me, it's also true that you'll most likely not see a reason to interact with the crafting system in general when everything dies already.
I'm not gonna judge someone for picking easy honestly, easy can still be fun. Like in your case specifically (For the OP), you were mentally done with the game already, so why push it when you can just turn down the difficulty and possibly enjoy the end more instead?