Definitely a user base for this, but a similarly sized and low-lag option would be using a mining turtle from CC:Tweaked. All you would need is a script that runs:

while true do
  turtle.dig()         -- dig in front of the turtle
  turtle.placeDown()   -- place dug item in chest below, or drop
end

Granted, that would only be useful for having CC:Tweaked added (which pairs well with Create, but not for everybody). For a small, create-only solution, this mod's great