Maybe they will add options once they get done, but it's also fine if they don't. There are other ways to accomplish the same thing.

Why hardcore? Because then it's more like Don't Starve. It also trains you to play more carefully. Up to you if that sounds appealing or not, but I've been getting some good mileage out of it. My personal rule is one extra life per unique boss defeated, which means Eikthyr is practically a freebie. And I only started that so I can check out the new stuff in the mountains without immediately starting over.

But for now, voluntary hardcore works fine. And you can set Valheim Plus to disable portals if you want. Mods aren't just for making things easier.