uh oh, you mentioned CrossFit in an article so now everyone is going to come and say that is guy is a nutjob and there is no way that his advice is good for you.

The interactivity was a massive part of making Journey as special as it is.
If you were watching a film, two characters cheeping at each other and you not having any clue what either was saying wouldn't be that entertaining.
They would either have to give a voice and dialogue to one of the characters or make the cheeps…