I see what you mean, but to me that would be pointless. Why bother to have game and level progression if you can access everything right away? I like the fact that you need to unlock as you go - adds to the sense of achievement.

I do like Zathabar's idea of a unlocking similar details to what you get in late game stages with different less expensive recipes, though I would hazard a guess that due to the finite nature of most mats in the game, it would be difficult to implement. Definitely a Valheim 2.0 endeavour.