Sweeping edge is only good and activates when you fulfill the criteria of sweep attacks which are –
when you are still or your walking speed is higher than your moves and finding that, you withhold with your enemies or mobs.
And if your attack recharge meter is higher than 8%.
But if you are not fulfilling the above criteria and moving around a lot among the map and also fighting with Creepers, Skeletons, and Zombies then you are not eligible for this enchantment. As a result, you won’t be able to get any benefits from Sweeping Edge.