We send humans to live in orbit where there wouldn’t normally be conditions fit for life thanks to our technology. I don’t think habitability precludes life from being there, especially if it emerged elsewhere and this is more of an outpost or research station akin to the ISS or antarctic stations of our own. Perhaps there are interesting things there in uninhabited systems, or they make a ripe environment for certain experiments or work that is unfit to perform so close to a habitable system.
