"In Minecraft" doesn't mean what it used to. When somebody wrote an 8-bit CPU literally "in Minecraft" it used to be badass. Now it's just a game addon.
Can't they just compete in separate categories? People have been making high-level computer mods years before even ComputerCraft, RedPower, or OpenComputers existed. And people will continue to make pure-redstone computers far into the future. Neither category is replacing the other :)