I think the idea is that hope is a good motivator to create change in the here and now, and more critically, is less likely to become completely depleted and make you a bitter person if success is not immediate.
Glad you enjoyed it. :)
I get that part, but there is also an element mentioned in the video where its about building structures that are able to dismantle the system sometime in the future. And often enough those structures get more focus than the well being of the individuals that make up those structures.
I also agree that hope is a great motivator, but I think its not wise to rely on only one. Fun and love are rqually powerful as motivation imo.