It's as easy as everyone says!
Like the title says, It really was that easy. It takes more time to get the wheel off and back on than it does to change out the motor internals.
I was worried there would be bearings that would have to be pressed off and back on, but there is nothing needed other than a 3 mm hex wrench. Note: the rear freewheel stays on the old motor end cap and is used again.
Thanks Luna Cycle for getting this right.