It's more about the details left out really. I lived in LA area for ~5 years, and 1 tornado. In one Tornado Alley storm system, you can get multiple twisters. There's of course more than one storm system per season. It's also just weird knowing that for a tornado to hit places like Santa Monica and the knowledge that tornadoes usually travel southwest to northeast, and that there is no more land west of Santa Monica, that they are going to form as waterspouts. That's just unusual for typical experience for Tornado Alley folks.

Just another example of how one person's typical experience with storms can still be unusual when experience some place else.

Sure, my original comment was very ambiguous about what I've just posted, but that's how the tangent worked in my mind.