Custom Paintings triggering Experimental Settings

I believe the addition of custom paintings through the use of data packs should NOT trigger experimental settings so it will not cause issues with the worlds integration into future updates. With the addition of the painting_variant file it feels like we were almost invited to start adding more to the game but I'm worried if I try to use my datapack on a server the world will have issues in future updates. If for whatever reason it triggers this warning but would not cause issues with future updates, I don't really see why its necessary to begin with.