There are recipes missing from the Vanilla Behavior Pack for things like chests and the wooden tools.  If you try and create a recipe to overwrite these recipes then they will function only when manually crafted in the crafting bench.  If you use the recipe book to click on the desired original item like a chest or wooden hoe, then the recipe is copied into the crafting bench and the original item can still be crafted.  This prevents blocking the original recipe which can be done for the other recipes included in the Vanilla Behavior Pack.

(It's also very unclear from the documentation if there's a better way to remove an item recipe in general vs. this hack to remove the recipe by having it craft something else.)