Unfortunately the mindset of those in control of resort grooming in the vast majority of our western ski areas for many years has been to eliminate moguls everywhere they are able to drive grooming machines except on steeps only fit for experts. Their excuse has been that there were decreasing numbers of mogul skiers so the public wanted more groomed slopes. But that was just a lame disguise for their real reason. The below had been thoroughly discussed on web boards mogul skiers used and I'll use this thread as an excuse to bring such up again. And note this is about moguls in The West and not the East where such has always been popular.
Of course there was always a schism since the 60s between freestyle enthusiasts that have never had any resort power and SOME racing enthusiasts that were from earliest eras entrenched in ski area managements and rightly so. Unlike ski racing that skiers at any level can thrive at, skiing moguls just enough to cope is one of the most difficult athletic challenges of any sport. Accordingly there have been large numbers of accomplished racers and other career ski resort skiers that never ever were able to ski bumps adequately. Many that had the raw athletic abilities never really tried, content to isolate themselves from gnarly parts of mountains and culture, and simply relate they disliked bumps so avoid them. But years of watching others ski moguls well obviously has tended to grate against the psyche of SOME of those advanced skiers that has been aggravated for decades by some individual's chest pounding and skiing media. In any case from the earliest days there have always been some racing enthusiasts and resort career people that absolutely enjoyed moguls without any issues. In fact many of our best mogul skiers have racing backgrounds.
When shaped skis, all mountain enthusiasts, and snowboarders began to dominate advanced skiing interests, SOME of those in management began to groom away lower gradient mogul slopes more and more that was an understandable balance. Some apparently noticed there were not many complaints given the all mountain shift. I will speculate that some in managements figured out if they eliminated the lower gradient mogul slopes that over years there would be even fewer skiers in bumps especially younger skiers. At first just a few resorts did so and as they did bump skiers would complain just at those resorts. Usually what they did given resort choices was to stop visiting such resorts and do their skiing elsewhere. Gradually over years that distilled places that did not groom lower gradient bumps to a few resorts like Maryjane at WP. All the while the numbers of competent mogul skiers has decreased dramatically without new blood.
If resort managements that control their grooming crews were reasonable, they would allow at least some lower gradient slopes to mogul up naturally. And not just at some obscure slope out of sight, out of mind because such slopes will never have enough skier traffic to create good moguls. Nor at the lower gradient runouts below steep mogul slopes, Good moguls especially as snow conditions become firmer, requires regular traffic by mogul skiers to keep loose snow about and the only places that usually occurs is within sight of chairlifts especially below.