Flat bedrock (for next season)

This was actually the case last season, but was NOT implemented this season. I would consider this a minor thing, but would be appreciated. I think it would be nice if the overworld had flat bedrock. It is possible to find a crevice in the bedrock that is very hard to reach with a cannon, and put a chest there. It is also possible to find "pockets" of bedrock, a cavity with bedrock on all 6 sides. It could be possible either with glitches or hacks to place a chest in such a "cavity" and have an unraidable chest. (this can be done in vanilla, unsure if patched here) In the case of the nether, if claiming is disabled, it's not too important, but could be good to prevent exploits. This may be as simple as a single config setting prior to world gen (though I'm unsure about TerraformGenerator/the custom world height specifically)