The people "who aren't all about stats" doesn't care for content to begin with - You can say "I'm not all about stats" and I guarantee you never make it past Turn 1. I'm not trying to be mean here, but no one can justify the content design of this game in a serious manner. Tell me why would I schedule FC runs for Primals or Sunken Temple or Cutter's? (Never mind that they're 4 man content as well for the dungeons.)
It's one thing to "do something for fun" and another to state this game has a ton of content that you do literally only one time unless you want to just have something to do. I have no reason to get a Primal weapon after I do it for my Relic Quest.
And before you respond with "well that is your opinion" - SE wouldn't have designed the Relic Quest the way they did if they wanted to make Primals viable content because the current ARR design makes primals useless if you're working on a relic weapon. Same with the main storyline - They made the dungeons involved with them useless after you clear it one time unless you want the armor sets which gets outdated by the next dungeon. There's things to do, no one denied that, it's just a lot of what there is to do is highly optional.