This is a great idea to solidify the characteristics of each race. In Star Trek, I enjoyed how each species interacted with each other and were often at odds because of their differing world views. So, I like this idea of tensions between the Doshans and the Alid. For some reason, this reminds of the quote attributed to Randall Munroe:

The universe is probably littered with the one-planet graves of cultures which made the sensible economic decision that there's no good reason to go into space - each discovered, studied, and remembered by the ones who made the irrational decision.