But about the "slightly modified game analysis page", I do have some difficulties with it. Not sure if I should post them here so feel free to move it.
1. navigating back and forward between moves does not seem very intuitive anymore. Yes, you can see the moves now listed but pieces are not indicated . Also castling is displayed very odd (was already not perfect in the old UI).
2. more troublesome, the "reset" button reloads the whole page, with some delay at times. Since I use that button a lot, this is not an improvement.
I have had some other feedback regarding similar issues too. As the game analysis page was not the primary reason for this update, it didn't get a beta period like I originally intended. I'll be addressing concerns now it is live though, so don't consider it "as is" forever more.