He's ignoring another important factor, also related to our lifestyle. As a community, we travel more than almost any other group. You cannot rule out the probability that this contributed to the virus being imported from other places.
Even on flights to big Jewish destinations (NYC-MCO), you'd be hard pressed to find a flight that's mostly Jews. I think you're overestimating the amount of travel among orthodox Jews relative to the rest of the country.
I'm not saying it didn't contribute to spread, I'm questioning your assumption that it had a greater impact on Orthodox Jews