2. if you nudge with a shield and switch weapons then swing it doesn't have a draw animation to keep the person from swinging. it also allows to only show the release animation if timed right.
This is indeed a "bug", but I don't consider it a balance issue as long as the shield nudge hitboxes are so wonky. It's a big risk to attempt a shield nudge, because even nudges that appear to connect perfectly with your opponent often don't, and this is heavily exacerbated as ping increases above 40ms (I know, because my ping fluctuates between 38ms and 120ms). Whiffed nudges are now the #1 thing that get me killed, but at the same time they are my #1 weapon, so from a risk/reward standpoint it's fairly balanced right now.
Compare this bug to the bug that causes polearm animations to routinely skip frames. This introduces major balance issues, and is the reason melee players are switching from 2h to pole in droves. It's just so much harder to block an animation that skips right from ready position to strike position.