The question "A lot of people complain about XYZ. So why hasn't this been fixed yet?" means there are also a lot of other things to fix.

So why hasn't it been fixed yet? Well, why hasn't the boat floating in the air haven't been fixed yet?

The answer is: they're getting there. I'm sure the devs have the bugs and excessive howling tracked in their issue tracker somewhere.

Also, you can complain further here: https://steamcommunity.com/app/892970/discussions/2/3112542578519474635/

You can alternatively get a mod to turn off howling: https://www.reddit.com/r/valheim/comments/lx4mp4/mod_are_you_tired_of_those_wolf_howls_keezys/