Not really, I'd just kick you before the boss died. That's what some people did in Vanilla.
I'm fine with this change simply because it wasn't completely uncommon in Vanilla for people to simply not be eligible for loot. Forgetting to tag the fucking boss or disconnecting only to log back online to a mob that's now grey to you. It would always be fixed, but it sometimes took up to a week to be fixed. Pretty sure the last thing they want to do is put too many resources into answering tickets. It was also pretty annoying when somebody actually legit hit need instead of pass/greed in dungeons.