Please no more Eureka!

[Reynhart]

Actually if you go back to some of their early live letters / interviews Yoshida stats that the Relic weapon was supposed to be the casual equivalent to the Savage weapon.

In theory yes, but in fact, the tome weapon was always on par if not better.

Where the Savage weapon takes skill and teamwork to acquire power, the Relic took time time and patience to get the same level of Power.

And the tome weapon requires less time and less patience for the same level of Power.

In ARR and HW I could keep upgrading my Relic weapon and never needed a Tomestone or Primal weapon.

Well, considering the Anima was released in 3.15, you probably needed the Ravana weapon. And from 3.2 onward, the Anima weapon was never better than a non-upgraded tome weapon, except at the very end.

In SB however I've had to keep getting tome weapons since I can't stand Eureka.

So, instead of farming Tomestones for your weapon in HW, you...farmed tomestone for your weapon in SB.

There has always been Crafted, Relic, Tomestone, and Savage weapons for Endgame. Deepdungeon weapons if you want to add catch up weapons.

The problem is that Relic is in fact another Tome weapon. It's dumb to have two weapons buyable with the same currency, especially when the most expensive one is weaker. And the relic is a catch-up weapon. Never since HW the Relic has been a competitive weapon for brand new content.