I agree with both sides: animated charts and graphs can add some welcome eye candy to an otherwise-dull presentation, potentially clarifying how quantities change relative to each other.
But they can also be distracting and annoying when used in a context where they add gratuitous motion in random areas. The chart.js homepage is itself an example of how not to use animated graphs. As soon as one graph captures your attention, you're distracted by another one animating in the corner of your eye, so you're discouraged from looking too closely at either.
The page as a whole suffers due to its lack of respect for the reader's attention.
But they can also be distracting and annoying when used in a context where they add gratuitous motion in random areas. The chart.js homepage is itself an example of how not to use animated graphs. As soon as one graph captures your attention, you're distracted by another one animating in the corner of your eye, so you're discouraged from looking too closely at either.
The page as a whole suffers due to its lack of respect for the reader's attention.