So just for science. I went through and looked on the first page of the bug report forum and found 12 posts for this issue. I’ve seen no mods addressing the issue. This is infuriating. I came seeking support last night when I encountered the issue and of course, you can’t REALLY submit a ticket on it - you just get redirected here to “report” it.
editing to add the links for the other posts
https://us.forums.blizzard.com/en/wow/t/the-garden-of-night-quest-night-fae-campaign/778891/43
https://us.forums.blizzard.com/en/wow/t/the-garden-of-night-cannot-completeaccept/780292/6
https://us.forums.blizzard.com/en/wow/t/garden-of-the-night-quest/780154
https://us.forums.blizzard.com/en/wow/t/a-garden-of-night-covenant-campaign-bugged/779993/11
https://us.forums.blizzard.com/en/wow/t/broken-web-cant-pick-up-cant-turn-in-a-little-pruning-and-spriggan-snares/778381
https://us.forums.blizzard.com/en/wow/t/spriggan-snares/778991
https://us.forums.blizzard.com/en/wow/t/renown-10-world-quest-ilvl-not-updating/780463
https://us.forums.blizzard.com/en/wow/t/another-spriggan-snares-issue/780223
https://us.forums.blizzard.com/en/wow/t/ardenweald-broken-webs-a-little-pruning-quests/780403
https://us.forums.blizzard.com/en/wow/t/garden-of-night-quest-night-fae-campaign-quest/779597