It was just too "neat." Do this, get this. "The ultimate goal of art is to learn these 'fundamentals' and move away from symbol drawing," blah blah blah the usual bullshit. The first thing it has you drawing is an ultra-stylized Picasso sketch, what is that if not "symbol drawn"? It was evidently the brainchild of some wannabe concept artist, and frankly their work was not very good, though I know that's a bit of ad hom.
I think what you should do is develop an affinity for drawing, if that's even possible. Learn to draw for drawing's sake first, learn to feel, just be at peace in the simple act itself. Then, organically work on problems as they show up in your work. Going in headfirst results/time oriented seems to fail at an alarming rate. Everybody who got good says they like doing it or did at some point.
But people don't seem to care for this answer because it's too open ended and vague, but that's what I think art is really about. Gradual discovery and personal growth.