It's the same underlying concept though - they're using their organic authority to rank for something else that's highly commercial and nothing to do with their main site.
So even though it's the same writers (if it is, I haven't checked) then it might not save them. Besides, if having the same writers doing would save them then all the sites would need to do is change the authors.
Another comment that they made at some point as a way of identifying this kind of parasite content is that it's isolated from the main site and doesn't have the same level of internal linking from within articles.
Tbh this stuff is potentially really easy to spot algorithmically. All they would need to look for is content that:
1. Has a high commercial value / high competition
2. Is isolated from the primary content / doesn't as many internal links as normal content
3. Is a different topic to the main content
Check all three boxes and you're probably 99% parasite seo.