: Everything the Pfhor have is stolen from someone else, so the Pfhor
: don't have robots either. (The apparent robots we see are actually
: cyborgs).
This makes even more sense when you consider that there's no evidence the Jjaro had robots either. Note how they uplifted the S'pht and made them into cyborgs specifically to serve the Jjaro:
Fleeing all W'rkncacnter, Yrro and Pthia
settled upon Lh'owon. They brought the
S'pht, servants who began to shape the
deserts of Lh'owon into marsh and sea,
rivers and forests. They made sisters for
Lh'owon to protect and maintain the paradise.
- Terminal 5, Six Thousand Feet Under
Indeed, the Jjaro seem to use a lot of cybernetic technology - just think of the implicit connection between the mysterious 'discovery on the Moon' and the Mjolnir cyborgs. Or even the incident with the Pfhor plugging a 'cybernetic junction' into a Drinniol.
Vale,
Perseus