Companies that are rescinding offers are just terribly managed companies. If you're in that bad of shape, then you should have done a hiring freeze months ago and there shouldn't have been any offers left to rescind (sure, there are odd ones where maybe they accepted 3 months early).
In addition to bad management, the contrast of the CEO buying a $133 million compound in Bel Air while throwing employees out on the street is just too stark.
Not many companies expect or plan for their valuation to drop 75% in 6 months, that's gonna lead to tough choices. In the case of coinbase I'm guessing they're also seeing trade volume (and therefore future revenue) plummet and don't project it to increase anytime soon. Not sure this is evidence of a horribly managed company so much as a company dealing with a crisis and doing costly things to their reputation to manage it.