It stayed at CG Cookie for those same reasons Brad. The Geometry Nodes course is this one:
https://cgcookie.com/courses/assemble-introduction-to-procedural-modeling-with-geometry-nodes-in-blender
There is a bit of geometry nodes used in this one:
https://cgcookie.com/courses/cubicity-creating-and-utilizing-asset-libraries-with-blender
And I bet JL is probably going to do a simulation nodes course sometime in the future.