This debate will never end.. But I have one resolve for the issue: People should stop expecting to get every single one and stop thinking they have the right to any hunt kills if they aren't even actually hunting. Hunts were designed to be hunted/spawned and killed by a small group, they were not made to be hunted and then have people sit around for half hour so people can finish dungeons or come back from afk inside their houses. If people are actively hunting in their shells etc, they would easily be able to keep track of respawn timers by watching others, same way we did it in XI. Easiest to start doing this after maints.
If using 3rd party timer sites etc. was 'the correct thing to do' then SE would have designed it after having this kind of NM system since 2002. People are under no obligation to share their kills with others, which again, would be known by any serious hunters anyway. Of course, if you're working or at school when they kill it, chances are you're going to be missing them for a quite a few days anyway, but others in your LS or FC should be able to keep track.