No, I don't believe that's the correct interpretation of the game. The rules are pretty clear about all forms of signaling being forbidden, not just verbal. The only communication the rules allow is saying "stop", after which all players place their hands on the table and remove them at the same time to resume the game.
Now, you might say that without non-verbal queues there is even less of a game here than this article describes. And you'd be right. There is literally nothing to "The Mind" except every player (explicitly or implicitly) counting time at the same speed and synchronizing up either after a card play or a "stop".