Polishing takes a lot of time. It isn't a good thing to spit-polish as you go and then discover that a deep flaw in the design, or sudden inspiration, causes huge sections of polished code to become un-recyclable. An EA game needs to be polished more than is good for it; the devs have to try to keep it down to something more like dusting, or putting tape on it, or mirrors or distracting us with "Who cares about glitches anyway?" scenery.

The build system might be completely re-designed before Valheim gets to release. Maybe someone has a dream about dancing molecules and wakes up knowing how pieces can be rotated in 3D (I have no idea how difficult that would be).

I don't want the devs to spend time spit-polishing. I want them to get all of the content up to the point where it is playable, and then polish and add depth and detail and reduce grindiness and so on in as many passes as the gods allow.

And I have a list, believe me.

OP should have noticed that a millions of people seem to have gotten around the "building glitches" just fine.