Cool, thanks for posting that! Listened to the first hour, very interesting stuff. Just to briefly come back to a point Falk made earlier:
It was a bit unfortunate when Kotaku (Luke Plunkett), IGN (Blake Hester), and Game Tyrant (Mick Joest) all implied that Sonic Utopia was the work of Lange alone, in their 10/24/16 articles on Sonic Utopia. While Luke Plunkett has since amended his article, after being contacted via Twitter by the main programmer (
Murasaki), the IGN and Game Tyrant articles remain unamended, despite the fact that they too have been contacted by Murasaki (on Twitter).
With that precedent in mind, I think it probably would have been a good idea for Lange to mention/acknowledge the other members right at the start. In the first hour of the video that I've seen so far, he thanks the other team members individually (by name) later on, at
29m07s (in response to a question), at
32m47s (in response to another question), and again at
36m39s &
59m45s (spontaneously).
Similarly, while Lange is clearly
very reverential toward the classic Sonic series (as well as toward Taxman), it would probably be great if he were just a bit more friendly/conciliatory towards present-day Sega and Sonic Team. There is a good deal of criticism of present-day Sega and Sonic Team in the first hour that I've seen so far (not without merit, it should be said) and the first positive mention of present-day Sega (indirectly at
41m47s, and more directly at
48m55s) is in the later part of that hour.
I'm sure Lange will be able to get the hang of this in the future, though!

And from listening to the first hour of commentary, there are certainly some very insightful, thoughtful, well-articulated remarks by Lange in this interview:
- Lange's Discussion of 'the Boost Formula' [15m57s] / [38m20s]
- How 'Boost Sonic' Compares to Mario 64 [17m00s]
- Sonic Utopia versus Mario 64 versus Sonic CD [56m26s] / [56m55s] / [57m12s]
- Discussion of Sonic Team's tendencies, in the era after Sonic Adventure [20m25s] / [39m40s] / [47m43s]
- The Difference Between what Nintendo has Done (post-M64) and what Sonic Team has Done (post-SA1) [22m35s]
- Lange Speaks Very Positively about Sonic Mania and Christian Whitehead's Sonic Games [28m20s] / [49m24s]
- Level Design, Exploration, and Physics in 3D Sonic Games [34m00s] / [45m45s] / [48m24s]
- Plans for Sonic Utopia [37m33s] / [39m13s] / [52m25s] / [56m59s]
- Thoughts on Classic Sonic versus Modern Sonic [4m30s] / [44m53s]
- Where Sonic Utopia Needs to Improve [50m19s] / [51m40s] / [55m45s]
- Thoughts on the Requests for a Casino Zone [54m20s]
- Design Considerations w/r/t the Spin Dash and Peel Out Moves [65m32s]