The grooming are way over board at most resorts. Doesn't have to be full on bump runs. Just leave the trails with some character.
I respectfully disagree completely.
I think your are extremely underestimating the amount of spills and collisions that would take place. I think id be lenient when suggesting that probably 80% of the ski population (as a whole) has too much trouble once grooming slips. I mean heck,...just look at any average groomed ski run in the morning when the groom is fresh vs later day when its all spoiled up and see how many more people are down.
Maybe not as much in this unique community but by and large we can thank grooming (next to only lift service) for its current popularity. There are tons of people of all levels that never or only rarely come off the groomers and ski their whole lives that way.
Of course every positive is not without a negative. But you cannot remove or cut back or slack on something that the far majority of skiers (from beginners to advanced and everyone in between) count on for their safe and enjoyable skiing. Its still much safer even with the risk of the irresponsible speed demons than it would be if you slacked off on the grooming. Even very many good skiers (tons of folks) tend to have more mistakes and struggles as the grooming slips away.
In my opinion you are way underestimating just how many accidents and injuries there would be. You prevent "some" percentage of one type of danger yet add a much larger percentage of another type. keeping groomed and even grooming more is far the lessor of the two evils and i dont even think its close. And if you groom less over all then the groomed area will be even more crowded and they then become more dangerous too.
Plus on another note and partially due to some the things mentioned far too much of the entire ski industry depends on and banks on groomers. The resorts to equipment and every single financial aspect about it would not be what it is today imo without grooming.