You remember how Caliborn just literally shoved a robotic leg unto his bitten off stump? And that's basically all he needed to do to walk? This should be an indicator on how robot prosthetics work in the comic as far as Andrew can be bothered to explain. Still, Equius built thousands of robots probably, so he should be smart enough with his own biotechnology.
That is true, but also these are two different instances. Equius works of Alternian Robotics and does stuff for Trolls. Dirk is on a Condy-controlled-Earth and sending the leg to Caliborn. Is Equius’ machinery more organic and more easy to interface with living beings? Is Dirk using Alternian or Earth machinery given Condy rules everything? Is it the robotics, or just Cherub Anatomy? There’s a few questions raised by that. It also makes sense on a sort of video sense, like. It could certainly be more complex but with a fast paced gruesome scene, also parodying Lord English’ first appearance in the Intermission 2, it wouldn’t make sense to like… Go into slow, excruciating detail about robotic implants.