4 ideas
Jayanthi, a genetically engineered human, is sent to the planet Meru with an alloform escort to show that humans can settle there without damaging the native ecosystem. The whole species' right to expand beyond its confinement rests on how one individual lives on one planet, which makes her daily choices a public trial.
The alloform order restricts humans because of their history of destroying ecosystems. Stewardship becomes a gatekeeping regime: a group judged dangerous by its record must prove harmlessness before it gains freedom, and the more powerful group sets and scores the test.
Settling Meru is framed as an engineering problem with observable variables, where human presence is monitored for disturbance to the native biosphere. Seeing colonization this way shifts the question from whether a people deserves land to whether its footprint can be measured and kept below a threshold, and who decides where that threshold sits.
Alloforms are posthuman descendants reshaped to live in space, and they act as protective custodians of the humans who stayed biologically closer to the original. Their care for humans and their control over them are the same act, because each constraint is presented as protection of humans or of other worlds.