Eventually Mastodon will get a standard implementation of quote-toots. At that point I’d think the appropriate way to represent Lemmy comments as toots would be to represent the toots as quote-tooting the root (post) toot. You’d still have to click the toot to see the context of the parent toot, but that’s a client problem - imho clients should always have an easier way to view the parent of a reply-toot than doing a full-page nav to the reply-toot in context of its thread, and the fact that they don’t is a problem on every twitter-style microblogging platform. But you’d have quick context of which article they’re replying to.