Earlier quoted context omitted.
Enjoying a game, video, or music is different than enjoying the underlying means of delivery. Do people love Javascript and HTML5, or do they like streaming entertainment? Do gamers love Unity, or do they love playing fun games, some of which are made with Unity? I played games on every Windows from 3.1 and up (and MS-DOS before that), but I'm not pining for the days of Windows ME despite how much fun I had on that m…
You're completely (and I think intentionally) missing that flash enabled people to easily create those things... and that creativity and ease of use still hasn't been replicated (your example of Unity - doesn't come close to the ease) People loved flash for what flash was good for (creative toys) they disliked flash when certain sites started making it the core of the navigation etc. When people are nostalgic for fla…
If you don’t like unity on account of being too powerful pick from the dozen or more easily found projects that do what flash did in the same creator friendly way. Here’s one: https://www.wickeditor.com/
Again, people didn’t love flash. They loved the content that was created. Having to deal with updating flash and all that hassle was something people tolerated to see funny animations that anyone can still make today. The concept was very cool, the execution was not.
Everything flash could do from a creative standpoint is easier and better now, with the added benefit of not being awful ux.