Not only that, it sounds like the latest version(s) might already have a timebomb in them to prevent playback of content after the sunset date, and they seem to be aggressively pressuring everyone to stop using it:
>Q: Will Adobe make previous versions of Adobe Flash Player available for download after 2020?
>A: No. Adobe will be removing Flash Player download pages from its site and Flash-based content
will be blocked from running in Adobe Flash Player after the EOL Date.
>Q: If I find Flash Player available for download on a third-party website, can I use it?
>A: No, these versions of Flash Player are not authorized by Adobe. Customers should not use unauthorized versions of Flash Player.