Comment by karaterobot

Sorry for the confusion, I just view UI as being basically synonymous with task completion: in the end, the user interface is the set of tools the system gives users to complete tasks.

Since the Google search interface is meant to look like you're talking to an AI, and probably has a lot of what we'd call AI under the hood, to turn natural language prompts into a query, I'm not surprised you view it as an incremental improvement at best.