Currently eviscerate roots you for about 0.25 seconds upon activating it, and another 0.25 seconds at the end. It is a small amount of time, but it is enough time to make the leap feel odd and clunky. If you compare the leap from dagger 2 and F1 burst, the leaps on dagger are smooth and feel natural, whereas the leap on axe feel odd and clunky.
Personally, that is the main reason I almost never play main hand axe on warrior, because eviscerate makes my warrior feel slow and I want the animations and leaps to be smooth.
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