According to this news site, the reason seems to be:
> …
My literal TL of that would be:
> "Producer Akihiro Yamauchi talked about the part of . He stated 'There is no correct answer to it.' and that was the intention of Director Hideaki Anno. Yamauchi stated "We want the viewers to feel various things (in the title), such as (new) (true/real) (god), etc."
(, and can all be read .)