Budding Amethyst ignores loot table from data packs

I cannot alter the drops of Budding Amethyst via data packs.

Specifically, I used the following loot table in the attached data pack:

 file: data/minecraft/loot_tables/blocks/budding_amethyst.json

{
  "type": "minecraft:block",
  "pools": [
    {
      "rolls": 1.0,
      "bonus_rolls": 0.0,
      "entries": [
        {
          "type": "minecraft:item",
          "name": "minecraft:amethyst_block"
        }
      ],
      "conditions": [
        {
          "condition": "minecraft:survives_explosion"
        }
      ]
    }
  ]
}

I also added dirt.json with the identical file content and that works.