Yes, I completely understand and agree with you.
One of the main reasons for such integrations missing in React is that with AJAX and MVC etc, they are server-side technologies, so we can provide built-in integration as we know the specifics of the technology and the API, they are so to say known variables. Where in the React world, the server technology can be different in every project, starting from MVC, Core, PHP, Java, NodeJs, etc. This is why making such file management integration built-in is very tricky.
Still, we know that this is an important part, and will think of an idea at least in a demo, to showcase how to achieve the same with the KendoReact Editor.
Also, as a side note, please have in mind that any of our Kendo UI for jQuery components (MVC is a wrapper of them) can easily be used in a React application as well, following this approach. We made this article as we understand that there will be components or critical features still missing in the early state and we wanted to make transitions like this easier:
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