Redstone Shield Block

With the Caves and Cliffs Update bringing more incentives to mining, many of us redstoners are excited to build new TNT miners. However, these devices have a major weakness: water and lava. Now that caves can included even more fluids these devices are going to face issues, so I’ve thought of a possible solution. This would involve a block that would prevent fluids from flowing into a certain area. This would allow redstone contraptions to move past obstacles with relative ease. I really feel as if this could improve the experience for technical players.