Yes people who believe it's highly likely the 5 year yielding 4% will outperform DOCU (or "most tech companies") over the next 5 years should be selling call options. Current option prices imply it's likely the opposite will occur. So, it's a great bet EV wise.

For those worried about "unlimited loss", just buy a wildly out of the money call, well above the price they sell them at.

Easy money - assuming it is in fact "highly unlikely" that the stock will outperform the 5 year bond....