I'm usually opposed to video evidence, but in this case, I think the video was an especially good means of illustrating the aggregation of resources to the righ

I'm usually opposed to video evidence, but in this case, I think the video was an especially good means of illustrating the aggregation of resources to the right in a way that a series of static images would not have captured. A d3 animation might have done the job just as effectively, but depending on the author's skills, might have taken a very long time to create, comparatively.