It's a video that I've seen before, but as you say, it's relevant to utilitarianism.
Here's my position. Experiencing an event directly counts, morally. Remembering an event also counts. We can be happy or sad, flourishing or suffering due to events real, imagined or remembered. So if I go on a holiday to France, I will enjoy this experience while I am there. After I travel back home to Australia, I may recall my time there. When I take pleasure in remembering my time in France, for all utilitarian purposes, this is a new experience. Remembering the narrative of my trip to France is a new experience.
The overall principle is that events now can be experienced now and they can also rewire our minds to cause experiences at a later date