[Krsqk]

I suppose that could be a design decision. After all, if you've had the time to fully research every possible technology, it's also feasible you could be given access to non-researchable tech.

Of course, this all makes more sense if you have a standard branch of low-ability comps, a standard-but-captured-some-racial branch of medium-ability comps, and a racial branch of high-ability comps.