Why do any of the robots do anything human-ish? It's surely about the most inefficient way possible.

Most of what they do that humans do makes sense since they are largely humanoid in form. Forex, Pintsize and Momo(?) had no cloths until they got humanoid bodies, otoh Moray doesn't bother. But yoga specifically... if an AI body loses flexibility it's a repairable malfunction.

He quite reasonably reconsidered off-panel.