In fact, I was utterly blown away by how smooth (absolutely lag free and very fluid) yet detailed this demo was. Very impressive.
...you do realize this isn't a game, right?
There is nothing compelling about WebGL except that it is interactive.
If I wanted a non-interactive scene that repeats, I could do it in anything and upload it as a video on youtube.
Dynamic interactive 3d is the exciting thing about webGL and it is the the thing missing from this demo, so I too, am disappoint.
Edit: here are error messages from console:
[STDOUT] Could not create canvas - TypeError: Cannot read property 'inspectContext' of undefined game-setup.js:11 Uncaught TypeError: Cannot call method 'viewport' of undefined allengine_no_native.js:89