God's law, in and of itself, isn't "bad." It's good and just and holy (Romans 7:12). That's not "bad." :) The problem with it is that it's static. It has no vitality. It can only make demands, but it has no power to produce in a person what it demands. The law is not supernatural. Just like the stones that it was engraved upon, the law is non-living. It never had life. It was never alive, nor a giver of life.
Contrast this with what we have in Christ, through whom the law was nullified and made void. Christ's life in us is a supernatural life. Christ doesn't demand, but rather animates us in ways that the law could never do. Christ Himself is our vitality. Christ Himself is our life. Christ Himself has given us His life and is alive in us.
This is just the tip of the iceberg in the understanding that we are dead to the law and alive to God in Christ!