Because of the multiped walking character, multi-legged walking robots own obvious priorities in motion and working under unstructured and unconfirmed environment comparing to wheeled robots.
It's very disorganized, not just unstructured, but lacking any sort of organization, being not very productive because everyone's talking at the same time.
That advantage has proved less formidable in the context of generative AIs, because foundation models are trained on the voluminous unstructured data of the web.