Waypoint RSS feed has two creators, Newsblur returns wrong one

I’m not sure if this is a “Waypoint needs to fix their RSS” problem or a “Newsblur needs to handle this edge case” problem.
There is a consistent problem with Waypoint’s RSS feed. If you look at the screenshot, it says Austin Walker is the author.

If you look at the article on the webpage, it says Patrick Klepek is the author (and the footer on the article confirms it): https://waypoint.vice.com/en_us/article/d3nzwj/sekiros-spirit-emblems-force-me-to-play-with-a-hand-tied-behind-my-back

If you look at the RSS feed directly (https://waypoint.vice.com/en_us/rss) , it says…

<dc:creator>Patrick Klepek</dc:creator>
<dc:creator>Austin Walker</dc:creator>

And if you look at this random result I just googled for RSS schema (
http://www.rssboard.org/rss-profile#namespace-elements-dublin-creator ), it says:

An item MAY contain more than one dc:creator element to credit multiple authors.

Who’s right and who’s wrong?