I think that is what the author is talking about ... the economics of getting it out of the ground.
Nah the author of the article has NO CLUE as to what he is talking about. He acts as if the ‘dot com bubble” was due to anything other than the greed of people like him. He had no product. He had fancy words. He thought people would jump on board. Once people figured it out they quit investing. That is snake oil salesmanship at its finest.
Shale oil like natural gas wells will be active and then they may be capped until it is more reasonable to uncap them. This has been true for almost one hundred years...... that hardly constitutes a ‘bubble’