When you have a headline that does not say what the actual topic is, and you are forced to click the article to find out the topic, that is called "clickbait".
And maybe that's the point: having just annoyed their customers, whilst they do need to communicate with and apologise to those customers - clearly the intended audience here - perhaps they don't want to kick up a massive fuss that lands on the front page of HN and other sites, and sparks a big discussion or controversy.
I don't think it's clickbait, but it's still a poor article to link. It's a mea culpa about some kind of controversy, but that controversy isn't described in detail and you're assumed to already know what's going on.
It sounds like some TOS change about a "data enrichment" feature, but I have no idea what the issue was with that? Maybe training on that data or having data leak across customers?