[IlPeach]

I might be nitpicking but, the transpiled version of React is the one that uses those standards. If you are thinking of trying to get a 5+ years old project working in a development environment you might effectively be out of luck.

To reduce the argument to a simpler one, this is effectively the difference between using vanilla js to build anything Vs using any abstraction over it that has a number of dependencies you don't control that are effectively a working solution of a dependency hell in a specific moment of time.

[svieira]

Yes, but then you are not comparing apples. Web components projects without a build step and relying on only stable standards are a subset of all web component projects. Same with React projects, though the ratios of without build vs. with build are obviously different.

[teg4n_]

if JSX is your issue, that means a web component framework like Stencil is just as bad as React. But then again you can use React with htm to avoid jsx if it really bothers you.