What a bunch of nonsense. The report makes extreme predictions without any backup or weighting of arguments. There is no reason to believe that the network should crash.
The author has no clue about economics, so please.... (not that Ben Bernanke or Mario Draghi have, but anyway).
There will always be a use for Bitcoins. Think about other countries than you yourself are living in. Think about people who have to pay 20% for cross-border transactions.