The people who need to watch the over feeding video are also the feed companies who produce all the crap that goes into the feedstuffs!
The high starch and high sugar cereals we don't want, we don't need.
I found it a bit irritating with the mention, more than once of cost cutting being a reason for over feeding. Fuel going up means you have dropped to a leisure feed, if that's so bad it shouldn't be on the market!
It did sound at one point if the person who bred your horse was to blame for its genetic weight problem, by over feeding the dam.