Remember that whole mess?
Well, let me tell you a story about Macromedia Flash. ;)
Never heard of it? 'twas a client-server development IDE which was based on the idea of a "data block", a true-blue bona fide Active Record implementation out in the wild around 8-10 years before Martin Fowler coined the name. Even then the world seemed unaware until Rails arrived.
Cost money. Great for animation -- not making a button shrink or grow sort of thing, but characters doing things. Lousy for anything to do with websites.
Flash had its share of footguns in terms of code organization, but animating interaction was never a weak point.
Yeah, but it was a Frankensteinian bastard of a system. Pretty sure the accessibility of that was zero, and changing a link or adding a new button was never trivial.
That was web-design for the worst reasons: for the designers and their clients, but not web-design for the users.