Unfortunately the archive link also lacks the full article. I guess the wsj found a way to detect it. Bypass paywalls clean also failed. Same with archive.org
Sites typically want to give the full article to web crawlers because they want it to show up in search results for anything that might be in the article.
It's also a mechanism of price discrimination. Using some third party site is an inconvenience, so anyone who can afford it or wants to support the site is going to subscribe. Having a slightly inconvenient but available path to reading the articles for free is a form of advertising (people who might subscribe can sample articles first), and most of the people who will always use the workaround were never going to subscribe anyway. Also, they may want the story to actually be archived -- who else is going to maintain a copy of it for the historical record when the company goes bust?
On net it probably gets them more subscribers to let it happen. But then their traffic declines anyway for other and industry-wide reasons and some shortsighted tightwad concludes that allowing it is costing them rather than making them money.
Yeah, I can't read it either with my paywalls filter. Oh well, I guess it's not that important anyway; there's no shortage of other news articles to read.
Is this a video? This capture doesn't look complete.