Becouse pillagers can't swim, they get stuck in rivers.

         I was minding my business, fairly excited now that 1.14 is close, when i got the bad omen effect and started a raid. In the first wave, the pillagers got stuck in a river, and they couldn't swim to exit it. They were on an open spot where it was pretty easy to get out.

          I hope it gets fixed, because it ruins the main purpose, which is them raiding us.