by not officially supporting mods the IG devs save themselves a ton of headaches and bad PR because of the fact that they tend to break the independent mods all the time.

Think how much extra time the devs would have to spend on testing each patch and update if they also had to ensure that the Official mod loader doesn't break the game. We would probably still be waiting for the Hearth & Home update if that had been the case.

Also consider that if IG did officially support mods they would be able to exert much more control over them and how they influence the game. Useful QoL mods like UnrestrictedPortals, BetterExploration, ImprovedBlastFurnace and many others that take some of the grinding out of the game could be banned by IG because they wouldn't "hold true to the original vision we (the IG devs) have for the game".

By not officially supporting mods, and most importantly not actively blocking 3rd party mods, IG has basically given the modding community a wink, wink, nudge, nudge to go nuts and make the game much more fun than it might be otherwise.

Once the game is complete IG might start adding official mod support but I doubt they will since BepInEX already does the job so well and it doesn't cost IG a Yen. That and IG would probably have to re-write the game from scratch on a different game engine since the Unity engine they use now is so easy to mod.

A trick I used when I still played the game was to copy the Valheim directory and use Steam's play non-steam game option to keep a playable older modded version of the game handy while waiting on the mod devs to fix their mods. I've never had to worry about not being able to play after an update borked some mods I depend on. I just switched to my backup. Just remember to copy the the offical folder to the back up folder every once in awhile to have all the new content.