The whole point of a Ski Resort is to make money and draw business. Therefore part of the draw is to bring people to the resort for the pow and such. Skiing inbounds doesn't require that you know anything about snow. If you are going in terrain that is black and double black terrain then 99% of the time you are an experienced person that has a skill set above average, or are an intermediate pushing yourself. But that still doesn't mean they need avy knowledge. That is why resorts have snow safety teams. Even then, sometimes snowpacks are a bit off, a bit sketchy, and 4 6 pound charges wouldn't be able to budge a face. They open it to get it tracked out, which helps with the stability of the run but later that day a group of 5 people could set off that same face. VERY rare but it can happen. Given everything i've said, if you're in black and double black terrain its always good to keep piling on skills and taking courses, if you're into learning about your sport. A snow safety team can't eliminate 100% of the threats of a slide, but their job is to trigger to prevent. and every team i've met is damn good at what they do. Our team used I believe 143 bombs today and didn't open that terrain, but could go back tomorrow and use a quarter of that and open the same terrain. It's not the resorts job to babysit it's guests. There are so many hazards out there. The guy that died going off the side of a run at the canyons, people were all up in arms about the side of the run not being marked and were calling for the embankment to be marked. So should we mark tree stumps? branches? should we boo the boo? nerf turf fencing along every run? No. It's a sport with risks, but training isn't something to require for inbound terrain use. A resort is a business, not a club.