First, noted in the article, is a false sense of security. If the Secret Service in the White House can have an outbreak, any workplace can have an outbreak. The pandemic has yet to hit large swathes of the planet, but it will probably do so before a vaccine is available. This is really, really bad, and will be until there is some substantial change.
Third is a sense of false optimism: There is one antiviral that has been tested to have a significant but relatively modest effect on recovery time, and that may reduce risk of death by an as yet unknown amount. Other than that, no confirmed breakthroughs in treatment. Nothing that sharply reduces risk of death or duration and severity of illness. In other words, the risks are almost the same as on day one. Why does anyone thing a lockdown can be lifted with a price in terms of many tens of thousands of lives just in the US?
Lastly, there is a sense that we will be in a permanent pandemic. As the above comment points out, the direct impact will be felt for one or two years. There will be permanent changes, perhaps as a result of the realization that access to health care is key to minimizing pandemics. Perhaps infectious disease surveillance will rise in importance. But the economy will resume. Un-parking airplanes will happen. Humans want to travel. Businesses may realize that business travel can be cut down. Schools may realize distance learning can work. But I see no reason why discretionary travel would not resume and grow. I see no reason why in-person social mingling would not resume, maybe with a bang, as people celebrate being vaccinated.