That's also where the Web is now.

People are saying that Flash was bad and HTML5 with heavy JS and all the functionality of modern browsers is good.

Such people are either fine with it, or don't understand that downsides of Flash (or Java applets, or whatever else) were defined by its advantages, which were much more important.

A lot of kids or young people with no particular interest in IT\CS\engineering would use Flash for animations or little cute things which made their simple, possible back then websites more alive. (I've just looked at such one site, abandoned with some trace of a resurrection attempt in 2019, and it's gorgeous.)

You had to know less to make your own stuff in that old Web than you have to know now.

The Web is by its purpose a networked global hypertext system, a living library with common participation.

That some people want to repurpose it, think they've been successful at it, and think others will go along with their wishes, - is sad, but should have no weight.