Actually, this sounds more like a Premiere Pro question than an AE question.
Although it sounds like a boatload of cuts to you, I have edited 30-second spots that have approached that amount. I must admit I didn't take time to count them all, but I will confess I had other things on my plate.
But the real reason for wondering why you're asking in the AE forum is that PP has a perfectly good text tool... so why use AE? Do you assume AE has a certain level of automation? You haven't really described what you want to accomplish.
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA