More carefully means have less civilian casualties, which is a good thing for everyone. As for firing people - they are elected officials, I do not think it is possible to fire them, but they will shut up. Nearly every democratically elected parliament/congress has extreme members. Israel is no different. The problem is that while they are still a fringe in Israel, they are powerful fringe. This ruling helps to reduce their power. Again, a good thing for everyone, including for Israel.