My guess would be that you can remove the quest from your questlog like any other quest - if that fails or if you're bothered by the icon on the map, you can complete the quest without any gathering or crafting required and simply ignore the area you unlock afterwards. By completing the quest you basically unlock the gathering and crafting area (with special mats and vendors), its not part of the quest itself. (Or you simply mark the quest as not-showing in your questlog)

I fail to see what "damage" has been done here - you unlocked something you're not intrested in. Big deal. Having this area available doesnt seem all that hurtful, even if you dont plan on interacting with it. On that note: There are some mini-story-quests available in said area once this restauration stage is finished on your server (regardless of your personal partcipation) - they add to the story of Ishgard after the dragonsong war ended, basically. If you're intrested in getting as much lore and story as possible, those might be worth your time after all. And again: You dont need to craft/gather for this.
"Click baited" is hardly the right term aswell - they made a big deal out of this whole crafting/gathering content for months now and the Patch-Notes would have had all the information you needed.