Thank God I've never been involved in serious litigation, but his description of the process sounds absolutely wild to me. Reminder that the US is a global outlier in 'loser doesn't pay winners' attorneys' fees' (as he notes, this is literally called the American Rule). And a global outlier in using juries for civil trials, which can lead to some gigantic unpredictable judgements. I'd imagine our discovery laws are unique too.
Surprised some business-friendly US state hasn't greatly restricted discovery in civil litigation, so as to attract companies to incorporate there. And this is why arbitration rose as a way to settle disputes- if you look at the standard arbitration agreement they greatly limit discovery