The point is not to take a hard engineering problem and turn it into a 5 minute solution. You're right. Not all problems can be reduced to short Youtube videos (although it is amazing how many can).
The point is to take what may have been considered a hard, even impossible, engineering problem and get it in the hands or head of someone who might someday come up with a new or better solution. Even if the ultimate solution takes years or decades, it's still a radical reduction in TTK.