volleyball change

Here's a proposed volleyball change.
Give two points to the opponent on a missed serve.
Too many players take serving lightly and slam balls into the net, or into the back of a teammate's head.
Momentum is disrupted.
If you can't jump serve, don't.
A team should be able to serve the ball over the net at least 90 percent of the time. It's a lack of focus.
I guarantee if two points went to a missed serve, we would see less of it and more points earned on the court.