EW Relic Grind is just a streamlined version of ARR/HW Grind

[AmiableApkallu]

I mean, i can't get tomestones doing older content so i cam kind of 'forced' to fill that void in current expansion 'dead' content by their design.

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.