"highest levels questioning your judgement"

Efvra mentions that the Kett haven't sent ships or gone back to their homeworld since they arrived in Helius. It would be interesting if the Kett were refugees like the Initiative are, and the 'upper levels' are their version of Nexus administration. Instead of trying to adapt planets for habitation using terraforming like the Initiative and Remnant do, the Kett integrate the genetics of the local inhabitants to better adapt themselves to the local environment.