Earlier quoted context omitted.
If all you have are unguided rockets, you're going to point them wherever they're most likely to hit something. If/when you have guidance systems, you can afford to be selective and concentrate on high value targets. That's how it goes in asymmetric warfare.
>high value targets Such as places with a lot of civilians yes
If you have the resources to be selective, it's much more attractive to hit specific targets like military facilities or political figures/institutions. Terrorist attacks are more often perpetrated against civilians nowadays because political/military targets are so hardened that assassinations are difficult.