A single graph might save hours. A full feature series where each graph type has yet new syntax to learn is indeed much more. Especially when there's followups, "let's make the graph move over the left half of the screen and then the next animation shows in the right half?" which again were one shot done in minutes with AI. For me just to gain the context of how to move the animation into the left half smoothly and then move all animations that were drawn into a separate animation file into this file and reposition each element from that second file into the right half of the screen would have probably taken a day.

We tend to underestimate engineering time generally. So i wouldn't look at the above and say "that seems doable in X hours". I stand strongly by my assertion that it saved me a week (at least!) all up.