I think none of that really matters until we see the price. There's a trial version and a free version of Microsoft SQL, but their full version can quickly top $20k without much effort - knowing how bad your "ouch" will be is key before I'd spend any time on the "ahhhh."
The diagram was fine; I didn't watch the video. I'll hit it up later.
p.s. Isn't a totally reasonable business model for a truly faster DB engine "free, everywhere, bought by Oracle?"
We think a lot about it. And even though this model definitely makes sense, we would like to build a business that can generate money and pay for itself.