i'm not gonna say flash is the end all be all but to say "it's good that flash died and HTML5+JS reigns supreme now" is an incredibly bastard take
flash was too easy to make functionality in so we needed to limit the scope of what runs on your phone so that you can only interact with things that are approved by The App Store (https://en.wikipedia.org/wiki/Thoughts_on_Flash)
i'm going to go back to a windows 98 computer connected to the internet and whoever i cannot reach because of TLS1.2, good