Something missing from this "Timeless" article

I am really, really enjoying "Timeless." But I just read this interview with the show's creators, and was struck by how something big was missing, just sitting out there, unacknowledged. Here's a quote:

So when I was toying with the idea of doing a network show again, I said to myself, "If I’m going to do this, it needs to have a humming story engine that I know I can sit in the writers’ room and get 22 episodes out of." And so then as Shawn and I were talking, we landed on this idea of you have a different historical period every week, with a different mystery in that historical period and meeting fascinating characters within that time, in a very genre way.

22 episodes? Yeah, I'm pretty sure you can get around 50 years' worth of episodes out of that formula . . .