It is about the way it protects from almost everything
beyond magical effects and attacks including granting the ability to see out and react to a potential ambush that can't see in. The fact that it used to specify the lowest of the low end cat1 nuisance storm sustained wind speeds and now protects even from a storm where the eyewall alone had recorded wind speeds well into EF-5 tornado territory shows that no mere
tuckers kobold style ambush by a mobilized dungeon can even make players in a discovered tiny hut think twice about finishing. Having scrolls and trinkets of dospel magic common enough to change that has significant impact on the game