Far from it. The script overrides assignStartingPlots.lua in favor of it's own resource placement system. You can disable that feature (near the beginning of the file) and allow the vanilla method, which will generate bison, cocoa etc. Better still, you could just add the new resource ids and placement weights... it's just a few lines... to the communitas assignStartingPlots function. Check the vanilla file for occurrences of bison and cocoa to see how it works.
Alternatively, you can disable the Communitas method and try the one from Barathor's More Luxuries Deluxe. There too you have to add at least bison id and placement until he updates his beta.
As an aside, bison don't really add much besides eye candy. They're just another camp, bonus resource that lack any building or pantheon tie-in unless you also address that.