Because furlough is the "bread" of Bread and Circuses. It keeps a large section of the population complacent and compliant.
But furlough is the dole - don't kid yourselves. It's a trial run for UBI - UBI by another name - and is successfully weaning people on to a life without work or purpose.
And it will be necessary when the expected and planned delays to "reopening" happen.
The majority will be paid to stay at home and consume (that is already happening), and eventually rent, goods from home - goods owned by the people who already own just about everything. "You will own nothing and you will be happy about it." An underclass will be required to actually manufacture the goods, though eventually that should largely be taken over by automation.
A single source of digital income coming from the state, with no cash and no means of earning, will ensure total dependency on the state and therefore total compliance. Don't obey, don't eat.
But at least the air will be cleaner and the cities quieter, without people out and about in them: twitter.com/wef/status/1365614687514165248
This is certainly the world that many powerful bodies and people are angling for. It remains to be seen how much of it will come to pass.