Data can come with a great many number of individual data points. Maps especially can be the playground for large datasets. While it might be tempting to visualize features of a dataset as individual elements, in explanatory data visualization especially it often makes sense to aggregate data to bring across a single point well. While Canvas allows you to show and animate many points, it is power you might want to use responsibly.
Having said that, it can often be mesmerizing to watch dynamic data unfold as well as bringing across a specific point. Combining user engagement with concise learnings is of course a great plus you should leverage if possible. Considering map data, there are a great many examples of dynamic visualizations with numerous animated elements, such as natural elements like winds or ocean currents, cultural elements...
