Steadicam operations rely on operator's muscle memory and hundreds of intricate decisions made on the fly by the operator. Gimbals are essentially engineered to compensate for camera movements. Horrible analogy, but this is basically comparing driving a rally car, where the driver and co-driver makes most of the decisions, with an extremely comfortable sedan where most decisions made by the computer on the fly.
We're in the business of details, and most people excel in the industry because of their attention to details. Gimbals such as Movi & Ronin are revolutionary steps towards camera stabilization, but steadicam is currently still the tool that allows specialists control over details. However, then again, when we become predecessors and dinosaurs in the industry maybe this conversation just shows how dated technology was back in 2016.