Make Sulfur blocks and Sulfur Cube available on Minecraft superflat

For those people who play on Minecraft superflat (such as Mogswamp and his avid followers), it would be a great shame and injustice to deny us the ability to access, play with and build with the new blocks and mob being introduced into the game. How they would be obtainable is up to you, but maybe have the baby sulfur cube drop sulfur and sinibar "dust" and have the cubes spawn rarely in slime chunks, or have the biome spawn in the end? I don't know, but I feel that it is very important that you allow these items into single-biome challenges and worlds, as those without them would be left out from the building and creative endeavours enjoyed by those with normal worlds. Please (and a hopeful thank you). [also don't give me something about how that's not "how you're supposed to" play the game, you've said many times that all playstyles are equally valid and therefore equally deseving of the new blocks]