It looks like they misunderstand how to improve their SEO ranking
In fact, on Tuesday, Google’s SearchLiaison X account tweeted, “Are you deleting content from your site because you somehow believe Google doesn’t like “old” content? That’s not a thing! Our guidance doesn’t encourage this. Older content can still be helpful, too. Learn more about creating helpful content.”
They really don’t. They’re going to hurt their domain authority and back links.
It’s more valuable to make an update to past pages because Google sees it as useful content that is being maintained.
You’re supposed to make tweaks once a year so it’s not stale, not nuke yourself.