From what I've been able to piece together from various sources is that in order to accomplish blacklisting a container from the crafting station, I need to:

• have the Extra Tags mod also installed
• create a data pack to add the "craftingstation:blacklisted" tag to the tile entity

So I created a blacklisted.json file inside a datapack in the directory data\craftingstation\tags\block_entity_types. And this is the code inside:

{
    "replace":false,
    "values": [
        "druidcraft:crate",
        "enderchests:ender_chest.tile"
    ]
}

But the containers are still showing up on the crafting station's tabs. I'm new at creating datapacks so it's possible I got something wrong. Any help would be greatly appreciated.

That's been changed, Extra Tags is no longer needed and it's now tile_entity_types due to a Forge change.

That worked, thanks!