What you ask for is impossible to prove, let alone test, without a rigorous definition of “insightful” or “accurate”.

Seems easy enough to preserve old development files long enough to outlast the companies that own the IP. Just gotta not touch them for a decade or two and then “accidentally” find them.

Free-to-play is just a ploy for future value extraction.

I typically go out of my way to avoid F2P games. I’d rather pay once for a game, rather than be stuck with a live service that constantly nags about subscriptions or microtransactions.