I would argue that it depends on your skill as a developer, the stacks that you're familiar with, etc. As an example I work with a lot of scientific developers who are familiar with python and R but don't know anything about the website needing to make a web application. They're also not trying to optimize for thousands of users or have the cleanest interface. Technologies like Dash, Bokeh, Stream lot, and Shiny for Python and R all help these types of people make a functional web application for a small set of users without having to go down the rabbit hole of web technologies.