Hell Yah I Want To Blow $#!t Up!
The golgrig do not raise our young, they must survive in the wild till they mature, then and only then may they be counted amonge the enlightened... so lets see your embryo do that!
See this is why we need multiplayer arenas in Spore - it would be much more exciting to rip into each other characters in battle rather than rattle on in some forum post

But let's see... let's theorize how close the golgrig would get to "blowing $#!+ up" in a believable setting.
Seeing as how they don't raise their young, the offspring don't develop any useful form of communication. Other than growling at potential rivals and mates when they happen to stumble across one, they can't really share ideas.
So they really don't have a way of saying "don't mix those two chemicals, Bob - my uncle did that and blew himself up." And if some lucky golgrig does manage to discover a useful explosive, he can't really record his findings, so when he dies, the knowledge dies with him.
Not much of an effective millitary force, eh?

Culture needs language and manipulators. A few grunts and tools held by your teeth aren't going to be enough to build a spaceship (but probably will be enough in spore, unfortunately). If you're left all on your own in the wilderness, you're not going to develop a language.
No contact with other members of your species in childhood = no language = no culture = no advanced technology.