Cat behaves like a defective robot when drinking from a tap

What is going on here? We know how naturally gifted domestic cats are at drinking from a faucet, and how much they enjoy it, so what is happening? This is a most peculiar video. The cat is being stimulated to drink water because the water is dribbling down the side of his face but he has not positioned his mouth correctly! It's as if his drinking action has been triggered by the sound of water flowing from the tap and it does not matter whether water is going into his mouth or not. It is like a mechanical triggering action. 

Cat behaves like a defective when drinking from a tap. Screenshot.

You would have thought that he would only drink if there was something to drink: if there was water going into his mouth. Perhaps this tells us something about domestic cat mentality and behaviour. It gives the impression that domestic cats are more stupid than we give them credit for but I normally say the exact opposite, namely that they are smarter than we think they are. This cat is behaving like a robot that's got defective programming and it's a bit disturbing.