They likely saw the $65K and listened to all the people that said it was going to $100K and never sold - watching it plummet. The "what if" scenario is pretty useless considering the entire point of any currency is to maintain value - which allows the predictable purchase of things creating an efficient market.
One of the original arguments for BitCoin was that it would maintain it's value during inflationary periods - clearly something it has not achieved. The justification for BitCoin seems to be a moving target - depending on whatever the perceived problems are - Dr BitCoin's economic cure all.