I'm not going to lie, I don't have a lot of faith in the people making markup decisions for HTML these days. It was obvious that none of these tags made any sense and anyone who knows what semantics mean knows they would get semantically bleached the instant they hit end users. Wordpress still uses B and I buttons for <em> and <strong>. That's never going to change because emphasis and strong are just not a thing that users understand so it can't be on the UI. In fact, I don't even understand the difference between the documentation fails to explicitly assert it. Screen readers and web browsers render them the same way as <b> and <i>. At this point I have to wonder for whom exactly what this markup created, and what problem did it seek to solve. I have no idea what was going on with the committee to take years of <h1> and <h2> meaning completely different things and think "what if <h1> meant the same thing as <h2> sometimes if it's in a <section>?" or "what if we <h3> didn't mean <h3> when it's in a <hgroup>?" This was a great place to introduce an <h> tag. Did they just want to avoid breaking backwards compatibility while at the same time not caring about it? I just don't understand...
Meanwhile everybody from users, to search engines, to social media platforms, to forums, to article writers are still waiting for a <spoiler>.