Yeah I'm a little surprised that some of the smarter people I know are buying into the problems with the markets.
Even if COVID19 were to have a death rate of something like 6% across the general population and not just octogenarians (who are beyond the age of contributing to the workforce in any statistically meaningful way), there is still no reason to believe it will affect domestic output for any of the countries where it currently resides.
The flipside is, will it adversely affect consumption? Right now, the evidence suggests the opposite-- employers are actually starting to consume MORE, especially in the tech, bank, and government sectors, in efforts to equip their workforces with better capability to work-from-home. Granted, that's in the near term, next 3-18 months or so, but there's still nothing to suggest major economic issues with either global production, or consumption, in the long term.
(edited after Northern Buckeye focused on oil-- I'm talking primarily about future global production above, not the oil price market drivers)