No scripting is a tell, it's about wanting other people to accommodate their concerns about running a complex browser, not about solving a real problem.

If it did somehow happen that a good deal of interesting content was published using the standard, the most popular client would probably be nonconforming, ignoring the rule to not render ambiguous content.

Every modern alternative web protocol is about accommodating the author's concerns and pet peeves about the modern web (and usually gatekeeping it from capitalists and normies.)

Protocols used to be limited by technology, now they're defined by ideology.