I suggest reevaluating your stance on training videos. Every human has an individual approach to any given subject. As an expert in my own industry I will still attend talks and training. Even if only 1% of the subject matter gets me thinking (which would be low) it is worth it as that 1% can trigger new creative thinking and cause a minor revolution in how I approach some situation. I believe this is what leading experts do to remain leading. Poker can’t be any different. In fact, small edges are arguably a lot more important in poker. 

I also find it true that studying some material can yield completely different things at different stages of personal development. A simple example is reading a book series like Lord of the Rings at 14 years old versus 30 years old. A poker example… if I watch a video series about 3-betting strategy while new to the concept I get a fire hose of information, of which I am hoping to retain maybe 10%. Later I might watch the same series and find only a trickle of new information but if Mr. “aaaaaaaa” clicks a hand in a range construction that I might not have considered it might trigger some personal introspection that could lead to a new area of improvement, or even just something to try out.

In summary, I think it is unlikely that listening to someone talk about a subject of interest for 5 hours should yield nothing. It may not be the video that is at fault. I hope that doesn’t come off as harsh. I’m just trying to make a point.