I can tell you with my own experimentation how difficult this form is to manage. It seems almost relentlessly tedious with the amount of detail you have to go through technically speaking and you have to apply your creativity to try and produce something visually interesting. (Which is why many videos featuring kinetic typography are under 2 minutes).
Just check out his post. It’s quite worth it. Here’s an example that he shows in his post–just to wet your appetite. . .