This video lesson is exactly what I would expect from a SKI Mag product. It's just like their print 'clinics'. Super simplified, super dumbed-down. The problem isn't in the presenters, its in the format. Even the most basic lesson on bump skiing couldn't fit in a 2 page article or a 2 minute youtube clip. By being compressed like that, it forces the instructors to make absolute statements which will do nothing but damage the progress of a skier. Two such statements that stuck out in that video were "As bumps become defined, they will dictate your line", and "Take the path more traveled" Both statements are super simplification and can hurt somebody who relies too much on them. For the novice to moguls, both statements are true, but only for a short amount of time. As you get better, you'll quickly outgrow both absolutes. A good skier dictates his own line, the terrain doesn't do it for them. I can ski any given bump in dozens of different ways. And because of that, on most bumps, i'll prefer the path less traveled. What they call 'inconsistent' snow, i call 'good' snow.
Put simply, don't ever put much value in Ski Mag's instructional products. You'll never become a good skier listening to what they say.