My dad was a carpenter and cabinet maker for most of his life. Even in retirement he spends most of his time restoring antique wood furniture. In all of that time he has never cut himself with the tablesaw. He has had the table saw kick lumber back at him. He has cut himself with other saws. But the tablesaw is probably one of the least dangerous saws a woodworker works with outside of unpowered hand saws. By forcing saw stop you are jacking up the prices of even cheap tablesaws several times over and forcing more people to use the far more dangerous alternative which is a handheld circular saw.