I mean the web stack itself was never designed per se. HTML is essentially a text annotation format, which has been abused to support the needs of arbitrary layouts. The weakness of CSS is evident by how difficult it has been to properly center something within a container until relatively recently. And Javascript was literally designed in a week.

And then in terms of deploying web content, you have this situation where you have multiple browsers which are moving targets, so you can't even really just target raw HTML+CSS+JS if you want to deploy something - you need a tool like webpack to take care of all the compatibility issues, and translate a tool which is actually usable like React into an artifact which will behave predictably across all environments. I don't blame web developers for abusing libraries, because it's almost impossible to strip it all down and work with the raw interfaces.

The whole thing is an enormous hack. If you view your job as a programmer as writing code to drive computer hardware - which is what the true reality of programming is - then web development is so far divorced from that. I think it's a huge problem.