They could easily set up a corporation and pay themselves over 10-20 years to avoid a windfall (and max out tax advantages over multiple years) if that’s the goal…
The corporation would actualize the income as profit at some <=1Yr period, where it would be subject to corporate tax. Not saying your idea wouldn't work out best tax-wise, but that you'd still need to run the numbers. I'm pretty amateur at accounting, so I don't know.
I do get a kick out of the idea that these guys basically revolve a lot of their life around developing DF. I wonder how much of their lifestyle could be legitimately expensed from a corporate account without any IRS hassle.