Yes. The body piles are the worst, and you're also going to find them in the crypts, where you have to deal with them, and you may not be able to hit the pile with a bow, since it will likely be behind a mud pile.

I prefer sword in the swamp and the body piles are one of the reasons. If I can't take them out with a bow, I use the bow on the stronger draugr until I just have a pair of no-star, non-elite, then I go aggressively at the pile. If you kill a draugr with the pile active, another will spawn, which could be worse, so take out the pile fast and then deal with the draugr.

The sword doesn't have a multi-target penalty like most weapons do, so it works well in these tight situations, where you might hit two draugr, a body pile, and a mud pile, all in the same swing.