I like Eureka's concept but it's just poorly executed, somewhat tedious with the mechanics/gimmicks and not as accessible. To be honest Eureka isn't that different from FATE grinding in an otherwise instanced open world. The world is pretty but I wouldn't exactly count Eureka as something new and haven't seen before. BA is a decent addition even if it's flawed, but they added it too late when most people shunned Eureka ever since the beginning.

To the old relic grinds' merit, they did keep other content relevant, yeah. It's a mixed bag honestly. While I don't really want to see more of Eureka, I hope they impress us with the new iteration.