Some of the quests in starter areas (havent made it too far yet) are way off. Multiple quests were showing me an area covering all of trisfall glades when in fact they were single areas or a solo person to kill that were stationary.

All quests data depends on WoWHead so if it this way thats becouse its like that on WoWHead.

No, theres deffinately something up. Literally every mob drop is an area that covers the entire zone.

https://i.imgur.com/djJNI7n.jpg

Wowhead is actually very accurate, only showing the areas around fargodeep mines. Ive noticed this in a lot of zones recently, but it was fine when I was playing a previous character.