As with any "New York Times Journal of Medicine"-type article, the author of the article didn't understand/chose to inflate the actual research - what they did was create a system that captures the fungus's electrical activity and used those pulses to arbitrarily assign movement rules to the robot. There's no suggesting of the fungus controlling the robot - merely a showcase that we have a system to capture the electrical activity of a mushroom. For all intents and purposes we have a robot with a motor instead of any other indicator - could've been a monitor showing a graph.