Blizz seems to be semi aware of the bug. They made a post about it back in July, but curiously they only mentioned the bug happening in battlegrounds and also had the bug listed in a section that said “The following reported issues are either confirmed fixed in recent builds, or we have upcoming fixes currently in testing” so, I don’t know if that means they’ve already implemented the fix but only fixed it for BGs, or if they have a fix still in development… There hasn’t been any update about the issue since then and I’m not sure if they recognize it’s not an issue that only occurs in battlegrounds.
“Feign death does not immediately drop the Hunter from combat in a Battleground”