Bert,
Agree with all you said, but it's the training world we've been talking about.
Yes, of course US commercial pilots have to fly almost whatever the conditions. So do UK ones. I was booked today to do the flying and other tests required to get the R44 on my UK licence (more CAA hoops to jump through). Rain, high winds, low cloud, no-one else even thinking about flying. A year ago I'd probably have been told we weren't flying. Instead it was; "Well, you're a commercial pilot; you can't stop for a bit of wind!" We got it done anyway.
Yes, I know you have wind in Vegas. But US PPLs can still manage to get through the course without learning about weather. Over here you couldn't - unless you had a lifetime to spare. That's all.