I might consider making a new tutorial. I think the main problem people have is understanding the concepts behind what they're learning. Sure, you can tell them to generate an array of heroes in a circle centered around a point, but will they understand how or why? You have to explain to them the reason for doing something one way over another, and what things they should avoid.
I have way too many things going on at this moment to even consider starting a new tutorial, but maybe sometime in the future I might attempt it...