I actually did and the link just references a specification, not a standard.

Something being “standardised” requires more than just a specification and just because the specification throws the term “standard” around it doesn’t mean it has been formally standardised.

This doesn’t mean people shouldn’t still follow the specification. Plenty of specifications exist that have not been standardised. For example, there is an RFC specification for CSVs but not formal standard.

So by all means push this specification as a de facto standard but please don’t mislead people saying it has been standardised when it has not.