Oh the Vasari tried to add research labs to the Vorastra. Their engineers had it all worked out, and the prototype even had them as features. However, the instant it was completed an army of space ponies flew by and destroyed it, saying that if the Vorastra was any more awesome it would be a rival to them.

The Vasari thus quietly dropped the research labs from the final design.

Coming from me, it might sound odd to buff Vasari... but personally I always found it odd.

Granting the Vorastra 1 Civil, 1 Military Lab and 4 tax income wont break balancing imho.

Assuming of course, the currently inbalanced things of Vasari are fixed.