I’ve negotiated a LOT of licenses and contractual agreements in my professional career. You have no idea how complicated some of them can be. There is almost always a targeted close or execution date, sometimes weeks or months in advance, but they’re just target dates. Sometimes those details never do get worked out, or sometimes all the initial details get worked out and one party or another discovers additional info that has to be figured out, shared (or not) and negotiated around.
So a planned release date means nothing - it was just a target.