[QUOTE=Elmo;4828565]there never was the "DCEU" was never an official term, and all we ever knew was that Snyder's films followed a narrative that some other one-off films may or may not be connected to. so again, there was never a DCEU. the way it is now is how they always envisioned it.[/QUOTE[
I think the standalone nature became more pronounced after the failure of Synder's attempt at starting a DC Cinematic Universe.
I think they were concerned about it at the point where they were putting a bunch of character cameos in BvS to set-up characters with planned solo movies, but that didn't take off.I don't think there's any evidence out there that they ever were concerned about that.