Colour me impressed, Exile. This is elaborate.
The mini-boss of this room, Jiquani, Architect of Industry has minions known as Jiquani's Creation. The minion or a golem, has similar or the same skin as Omnitect's Guard, Amplifier Defender and Rusty Crusher.
Despite Jiquani's Creation looks exactly the same as Omnitect's Guard found in The Vaal Omnitect boss fight. The Factory room does not add Omnitect's Guard to the boss fight, Hatchery / Automaton Lab / Hybridisation Chamber add that minion to the boss fight instead.