For the Old gods, new blood - the latest update, Mo has received some visual changes according to the update patch. Supposedly the change would be affecting visuals only, but previously, we were able to cancel casting Burrow by pressing the cancelling button before the first part of the animation played out - before Mo and Krill visually burrows into the ground, and since the latest patch dropped, this has been seemingly removed.
Does this count as a new bug that comes with the visual changes or is it an intentional change?

Does this count as a new bug that comes with the visual changes or is it an intentional change?
