Amazon is also king of providing value in their markets, and their markets are also apathetic toward flashy design. I don't need animations when I am provisioning an AWS instance nor when I am buying goods at the lowest possible price I can find.
However if I were not me, and I were shopping for luxury or boutique goods, a site that looked like Amazon would not instill me with confidence.
My point is just that the web has diverse design and UX needs and the current toolset caters for that. If someone managed to build a platform with those benefits and more and the webs market penetration then I would be on board.
I will argue still that it is necessary if you want an alternative to the web, as the alternative has to be a better value proposition for the end user not the developer.
But it will need to be the same experience that the client asked for. Coke is never going to ask you for a react website with webpack tooling and a lambda backend, they are going to come to you with some grand vision of an application that their marketing team imagined in the shower months ago and has been workshopped into a mess. You may or may not be able to deliver that with simple HTML and CSS.
I am also keen for the web to move toward some kind of stability in technology as well, the churn and wheel reinvention factory that we currently have is creating a bit of a mess but I don't think it's worth throwing the web away just yet.
Users expect every website to have a unique identity (unlike anything built with WinForms), that is what creates the complexity.
If you actually use something like bootstrap, your website will look unoriginal, but it will be dead easy to make.
yarn/typescript and (though some days I hate it..it has gotten better) webpack largely make it feel sane(r).
That said getting to a point where I was comfortable with all three was insanely more complex and time consuming that picking up Delphi 6 was in the early 2000's.
Shrugs, the beast is what it is until someone does something better.
Much of the complexity of web design is not in the tools; it's in the fact that users don't expect a standard whatsoever, they just expect their UIs to be as slick and customly designed as magazines. If every website was written using the same standard, predefined set of widgets and components, the complexity would disappear.