Quote Originally Posted by AmiableApkallu View Post
You can do, or have a chance to do, older content for those tomesones via
  • Level 50/60/70/80 Dungeons roulette
  • Leveling roulette
  • Trials roulette
  • Main Scenario roulette
  • Alliance Raids roulette
  • Normal Raids roulette
  • Mentor roulette
  • Frontline roulette

My own hot take might be that SE decided that they didn't need to encourage running a specific expansion's content, so they just fell back on the familiar, all-encompassing roulettes.
Wow I can do the same roulettes I’ve been doing since the roulettes were introduced

What if I want to earn my relic doing eureka, what about POTD, ocean fishing, PVP, gathering, crafting, beast tribes, variant dungeons, Bozja

Saying “here your choice is one of the roulettes” isn’t a choice at all