They really shouldn't make Flash completely unavailable to download. They're cutting off a lot of legacy content with cultural significance. Yes, using unmaintained software is bad for security. However, the alternative of forcing people to use third party sources—which will all be somewhat shady, since Flash is technically under copyright—is even worse for security! Now, you might be downloading a fake, malicious co…
Shockwave !== Flash. Confusing, yes, as Flash was sometimes labeled as Shockwave Flash.
In addition, everything I said applies to Shockwave as well, albeit to a lesser extent.
(Also, what the heck is with that confusing name? It made troubleshooting a Shockwave issue quite annoying a couple years back, because all my searches for "Shockwave" turned up results related to "Shockwave Flash".)