Actually, I can't see that Flurry have any analytics support for HTML5 games. Looks like it's all for native.
I don't remember where I got my flurry plugin, it's somewhere in the forum and it works the last time I tried it, I'm not a guy for techy stuff, just a user, so I don't really have anything to say about that. I was thinking that probably you can adapt the existing one given that the creator allows it, sort of like what you did with cranberrygames.
Actually the point I'm trying to make is about the statement "Even if it does lack a bunch of features that the others take for granted", and my opinion is C2 missing analytic as a major category/features, I feel that C2 should have it, supporting one at least.