They fire guided munitions at Israeli troop positions. They fire unguided rockets and mortar shells into Israeli towns. A video of a targeted Hezbollah strike doesn't illustrate anything at all; everybody points the gun when it's useful to do so, it's what you do when you don't have a combatant target that tells the actual tale.
I can't say enough how odd it is to bring this kind of take into a discussion about Hezbollah. Note that I'm not making the case that Israel is fastidious about avoiding civilian casualties; that would be an unproductive argument to attempt on this thread. You have found one of the few arguments that are even less productive.
https://www.amnesty.org.uk/press-releases/lebanon-hezbollahs...
Any collateral damage here is orders of magnitude less than what Israel has done. There’s no debating that.