we can define intrinsic value as the amount of energy required to create an object
The basis of the article is that the value of a bitcoin is determined by the cost to create it. It is an old argument, but it cannot be true. An object's value cannot be determined by the cost to create it. Consider a campfire. The cost to create it can be close to 0, but its value is very high if it keeps you from freezing to death. Likewise, the value of gold or bitcoins is not determined by the cost to obtain them. It is determined by their utility, however abstract that might be.
Furthermore, an "intrinsic" value implies an objective value, but all value is subjective. Therefore, there can be no "intrinsic" value.