WE is probably every single one of us. I didn't make any reference to the "emptiness" of the Action Bubbles, just the size, and didn't really say that it should be JUST like Crysis 1.
What I'm trying to convey here is: Remember the park in the very first stage of Crysis 2? Or the entire first level for that matter? That was an awesome sweet spot in size, but 80% of the game is much more claustrophobic than that.
EDIT: Or that one last part in the first night stage (The first one in which Hargreave talks to you directly) in which you start from an elevated position, work your way down a destroyed park and then back up again into the sewer system. That Action Bubble was pretty big, I loved that. There are a few sprinkles of genius just like those in the game, but there are also a ton of them that are either too small or devoid of inspiration (the later parts of the HIVE level: Ugh!).