Wow, Out of the Park on it. Glad you asked about Thermal Management, AKA, cooling, which was my first big question. Great detail on the low temperature circuit and the problem of turbo coking after long trips and drivers not letting the engine run after a long trip to allow oil exchange. Towing comments regarding spark retardation and the critique on the SAE standard being narrow focused were refreshing to hear.
I had a call at the beginning of the video I had to take, so I may have missed any question/answer on the GDI aspect. He did mention in the High Pressure direct injection in a couple of topics, but nothing on why, like GM, they go with GDI only and not port/direct combo like Ford and Toyota in the engine.
Here is EE on the plasma spray in the bores as opposed to iron liners he mentioned. I'm old enough to remember adults complaining about "tin can" Vega engines and was an adult myself when the '90s Porsche/BMW Nikasil and high sulfur fuels debacle happened, so still glad my LC9 has iron cylinder liners (still a bit of a sceptic):
Great job Tim.