Better or worse has multidimensional factors.
You have to separate out what some techies like vs what the typical web surfer likes. Usenet doesn't have:
1) upvote/downvote and algorithmic ranking -- which is what Digg and Reddit were good at. Typical web surfers like to see the most upvoted stories and most upvoted comments. In contrast on Usenet, it requires a separate newsgroup reader and configuring filters and manual curation. This is too much techie work for regular folks that want a quick dopamine hit of random web content.
2) good spam control. No system is perfect but web forums like reddit and HN have less spam than Usenet.
3) rich text and formatting. The private web-based forums software like vBulletin and PhpBB are good at this. E.g. upload photos, add colorful smiley faces, avatars, etc.
4) no easy way to be "lurker" with Usenet (at least in the 1990s). To retrieve the latest Usenet posts, your newsgroup reader software had to have an "account id". Reddit and HN don't need any sign up just to read posts; just point the browser at a url. Therefore, instant gratification.
Usenet is "worse" in some dimensions when considering multiple dimensions of convenience and usability.
Yes, Usenet is better on some dimensions such as offline reading and non-central ownership. However, I think we can agree that typical web surfers don't care about those attributes.