That's the kind of lazy bullshit idea that, to me, exemplifies the AI hype slop era we're in. The point of a chart is to communicate visually. If the chart isn't clear without a supplemental explanation, why is it there?

If user research indicates your chart isn't clear enough, then improve the chart. But what are the odds they did any user research? They probably just ran an A/B test and saw number go up because of the novelty factor.