Rocket Bomb question.

[Laveral]

Why would the Rocket Bomb be a goblin only discovery? Now personally I don't see its appeal other than the name sounding cool. It is really kinda weak. What I am trying to figure out is why would only goblins be able to figure out how to do this?

[Zhayne]

There's no reason other than forced flavor.

There are dozens, if not hundreds, of racially restricted mechanics in the game that have zero reason to be so restricted.

[Petty Alchemy]

Goblins are most likely to be rocket scientists.