I'm not buying it. Svelte's template language also has different syntax/semantics from HTML as well - arguably just as much. The JSX parts are character for character the same as HTML as well, except for the class/className distinction (which if you have used Preact it does not have that issue).
Svelte does not make any opinions about HTML attributes or tags, unlike JSX which contorts language standards such as `className` or disallowing style="..." without JS in CSS.
