Have you done 10/10 CE and or pushed 20++ and or 2k rating pvp?
Because I can assure you that when you have to keep farming Torgast for the legendaries upgrade, farm the shards for progress on different difficulties and upgrade them etc etc it becomes a job.
Otherwise if your approach to the game is like
Doing HC and some mythic bosses like 3/10 and the usuale 15-16 weekly for the chest, is casual and I am 101% sure that is fun when you don't bother.
I liked doing Sylvanas Myth but I didn't like the farming. And this can be sought basically in a lot of mythic players and streamers just see the fleks or thc memes rant