I know you didn't ask me but if i'm not mistaken it has to do with the SEC rules of significance from a new source / revenue stream.

LG was the first $$$$ from a new source the portfolio package so NDA was not an option it was required to be known by SEC rules. So they say.

Once it was known what $$$$ could be expected from this new revenue stream the company could go into stealth mode via NDA and still comply with SEC rules if I remember right from what i encountered / learned from PTSC.

JMHO