One thing that doesn't make sense is them saying they try to eliminate clicks. But they're removing lots of direct buttons and hiding stuff under hamburger menus which actually adds a lot of clicks and breaks my flow.
I haven't seen the new one yet as I don't use nightly, but this is one of the criticisms I have of Firefox since the last redesign. For example, moving the bookmarks menu and history under "Library". Meaning one extra click to access both.
Of course you can put all this stuff back in the toolbar but I have many systems and this is annoying. In the super-short clips I didn't see any change to this. They still make everything pretty click-intensive.