By dynamic I think they mean executing live code that is reading from a database, like MediaWiki.
I think the Wikipedia-mirroring version would need to be essentially re-generating static content, like how Jekyll works. That can be made to be user-editable and “dynamic” but not quite in the same way
I wonder if the git-ipfs transport would make something like that simpler? Could keep the git repo with the wiki in IPFS, and also have git post-push hooks that regenerate the site, sync to IPFS, and update the IPNS record. Not positive the best way to make it editable in the browser though