[Firadeoclus]

A "generic raw text editor" is a tool. The vast majority of text editors people use are actually quite complex, way beyond the complexity that would be needed to implement a "generic structured data editor". And the latter could make many very-nice-to-have features simpler to implement so it would very likely end up with less complexity than a full-featured "text editor".

The main problem to be solved is that structured data editors (and structured data query tools) are not ubiquitous, even though structured data formats are. Which really is a shame, considering the amount of time and effort sunk into issues (TFA, tabs vs. spaces, unmatched delimiters and other structural typos, syntax extensibility, etc.) that wouldn't even have to exist if we weren't dealing with raw text.