Psilons used to be awesome because they could research everything in a given subject, now not only can everyone research everything in most subject the Psilons can't do it for the handful of tech that still require a choice.
Humans used to be able to keep most people happy even on the hardest difficultly really getting to pick the moment to strike out AND reap huge benefits from trading and research treaties and getting tech out of allies, Now maintaining a friendship with even one race is nearly impossible and requires investing so much in trade and research negotiations while bowing and scraping to their every demand and making enemies of their enemies ignoring their every slight and incursion in your territory as you go just to stay more or less neutral especially considering that the cost of the trade and research agreements after a very short time don't produce nearly as much as you spend to set them up. so yeah humans are worthless now too.
So far the only races that seam to matter at all is Mrrshan because you can chug out a destroyer right away giving you a minor edge over nosey neighbors/pirates and the Sakkra because they can populate faster than you can make colony ships early on which makes for nice expansion.