This more or less confirms what Musk had already said informally to employees.
FWIW, he was pretty clear "Volume Production" was more or less full speed ahead at 5k+/ week. They will be producing trucks during 2022, it's just going to take most of the year to get up to that speed. So it's likely they will produce 60,000-100,000 trucks in 2022 and 250,000 in 2023.