User blog comment:Biggreybear/Things that bugged me once I had noticed them.../@comment-899316-20120610025008/@comment-4950455-20120610214003

The virtual aliens' absence isn't hard to explain away. There was only one ship of them, after all.

It is a shame they weren't followed up on, though - it was a neat concept, and since the only ones on the "outside" were those that had exchanged bodies with a member of the Citadel races, there would be no need for a new model (the reason why the raloi were absent).