I see, if I could add some input… from what I understand, the googlebot crawler is pretty good at finding new content/pages quickly regardless of stack behind the setup. That can’t be the only reason Discourse is using the crawler version but do understand the implications.
Maybe now with AI and how the internet is changing the idea of on-page SEO will become more and more of an irrelevant factor and the content/data itself is what will matter the most.