I do not know what Adobe Flash Player is. All I know is that I must be sad.
Thanks for your feedback. You don't have to be sad, though. Well, maybe about the Great Pacific Garbage Patch, or the melting Ice Caps and the grim future for Polar Bears. As far as Flash goes, 25 years is a long time for a piece of software to exist, and we had a good run. We're glad you enjoyed it.
Most of us are not sad about Flash EOL, but sad about many years of work, millions games and applications without to find a good Adobe Flash to HTML5/JS converter to make things easier for everybody and avoid business and developer bankruptcy.
But Adobe prefered to abandonned its own clients, and accept easy money (but every bad deal has a bad end) from we all know...
I learned a lesson, that only a humanity with a majority of happiness and harmony will save technologies.