Yes, I think they are not useful against point targets. In practice, it seems scud missiles have mostly been used against area targets, particularly terror bomb

Yes, I think they are not useful against point targets. In practice, it seems scud missiles have mostly been used against area targets, particularly terror bombing of cities. To get military effects you probably have to fire a lot of them, e.g. Wikipedia mentions > During the mujahideen attack against Jalalabad, between March and June 1989, three firing batteries manned by Afghan crews advised by Soviets fired approximately 438 missiles in defense of the embattled garrison. https://en.wikipedia.org/wiki/Scud#Operational_use https://en.wikipedia.org/wiki/Scud#Operational_use