SE is predictable and I would say safely so but not always for the better. After Eureka and finding it impossible to get into more than a frag farm/learning party for BA, I gave up hope on getting the Ozma mount. I just passed on this new relic. Straight skip and more than happy that I did that. I have had more time to play FFXIV content I want to play and do the things I want to do. I did try out the DoH/DoL relics, to that side I liked them. They are nice as you can do them over time or skip the ones you don't care for on your own with no one else. They are also nice as they are optional, the i490 crafted gear is more than enough to last into 6.0.
Having said all that, I liked doing the ARR and HW relics. I did them when they were current content at my own pace. Even with some low drop rates (11%) I still did actual content. I could be farming a part and do fates with FC mates or help them get into dungeons that I also needed for relic. It was fun and I met a lot of great people in the ARR/HW relic.