Square Enix and their requirements to even play the damn DLC is what made me laugh out loud at 2 am. It's a fucking mystery how to get to the Jill and Joshua quests respectively and the only thing the DLC mentions, is that you have to have done those. Why do they these two even have requirements in the first place? Not that my communication with Clives brother is dependent on 3 random fetch items I had to collect earlier. Most mind numbing markers I followed in a while to play what I payed for.

AND YET, Echoes of the Fallen is kind of goated, because of how absolutely crazy it is that they gave Omega the chicken tenders. The way the Azys La and e-scape theme are woven into the (pretty forgettable) dungeon that builds up to the fight, is pretty damn cool.
I REALLY enjoyed the Omega fight too. The DLC ends up being pretty short, but if you plan on buying 'The Rising Tide' anyway, it's a nice appetizer for what the second DLC COULD be.
Echoes of the Fallen didn't blow me away, but was enjoyable nonetheless.