True, but I didn't think that we should go to Ball's Pyramid and eat them up. I was thinking about mass production. Think about chicken: there are more chickens than humans on this planet [1].

These creatures have such a great name! Nobody wants to eat crickets or worms, but who could resist a tree lobster? It is such a great marketing name!

[1] http://www.economist.com/blogs/dailychart/2011/07/global-liv...

Edit: you are right that being a food source for humans doesn't guarantee survival. It only happens if the food source can be mass produced.