Some people don't like regeneration coming up on the ground at all. But since this is a natural result of thinning the overstory, it's hard to avoid. Regeneration can be minimized by light thinnings, but such thinnings are usually in conflict with silvicultural objectives, ie, thinning out so residual trees can grow rapidly, or regenerating stands to a higher percentage of high grade species. It needs to be remembered that slash consists of organic material that goes back into the soil and enriches it. Nutrients are concentrated in the small branches.
Some landowners ask about having it all removed, including the unmerchantable small branches.
That is possible at a cost, but there's also a cost to the long-term productivity of the soil.