Indeed. Which is unfortunate, because of all the classic settings they've touched (that I've seen), it was the best, IMO.
Actually, it's perhaps worth noting that 5e Eberron had virtually nothing that we hadn't seen before (and even less following the DM's Guild teaser product). But what it did do, like the 4e version before it, was bring together a lot of the very best of the extensive 3e material to provide a very solid one-volume version of the setting. So while I own all the 3e and 4e books, I still find it to be of value, simply for that.