I'm new, but the thought crossed my mind, so hey people!
Humans are not making all the same mistakes the PC did, so in this sense, they are superior. But as a superpower, not at all.
Also, are you saying the Vajra are superior to the Protoculture? It's been a bit since I've seen frontier but I don't think that's really the case.
They imitated the Vajra so it's not like they are inferior. They run across some alien species, worship them, then imitate their 'technology' and probably expand on it. Besides, they did create the EVIL series, which would probably annihilate the Vajra, right? Vajra don't seem to be on the same level as them.
Also, since it's necessary of my first post.
FIRE!!!