None of that actually changes what I've said, though.
I said it before, 'new space-adapted human race' is as vague as can be, because there are so many ways humans can be said to have adapted. Even just a new social structure can be called an adaptation to space. You're right, the clause is nebulous and just an invitation for trouble, and that's obviously why it was stifled.
But that doesn't change the fact that it was presented in the first place and then suppressed for the express purpose of pre-empting the inclusion of these new humans in the government. The literal interpretation would be to apply it to proper psychic-power Newtypes, but the idea of Spacenoids generally being a distinct people from Earthnoids is well established. Deikun had Contolism, Gihren talked about them as a chosen people, even at Sweetwater Char talked about it as 'us' and 'them', that the people on Earth are a different people to the people in space. The very language of 'Spacenoids' and 'Earthnoids' just illustrates the idea as being common.
So now we have the long, long suppression of a constitutional clause which can very easily be interpreted to promise, "priority," in involving Spacenoids, even just a few of them, in government. The clause was removed for being an obvious source of trouble, of course. But it was there. It was valid, legitimate, constitutional, whatever other word you want to use. It was meant to be there, and actively removing it only makes all of the trouble it invited even worse, because it couples a nebulous promise with a seeming heel-turn betrayal. It can only aggravate the Zeeks, and disillusion the not-very-well-off of the neutral colonies.