One of the consequences of Rick leaving to join Yes was I discovered the Strawbs. I was a Yes fan and had to check out the band this new keyboard player had come from. I borrowed "From the Witchwood" from a friend and was blown away. The Strawbs became one of my favorite bands.
Just finished reading the "Grave New World" chapters. Cousins confirms that "Tomorrow" with all its venom was about the departure of Wakeman, the line "You talk to me with acid tongue" relates to an interview were Wakman had upset him. I had always considered Blue Weaver's blistering Organ solo on that track has a touch or "up yours, Rick" about it.
The Grave New World film was mentioned. This was quite revolutionary at the time using the blue screen techniques. It was pretty much the first time I encountered what was to become the ubiquitous music video format.
Several years ago I had an online conversation with Dick Greener who runs the Strawbs web asking if the film with ever resurface, he said it was very unlikely it would ever be re-released. Cousins says in the book that with the exception of "New World" it has not aged well. (and hinted it was cringworthy in places).
Here is the "New World" sequence from the film
https://www.youtube.com/watch?v=hhEwjCoGru8