I'm sorry I have to tell you this but a goodwill warranty replacement is just what it sounds like. They are covering it under the warranty even though the warranty may not apply.
It's not an article, it's a blog post. And I do understand. There are all kinds of innacurate statements on the Tesloop blog and Tesla is not legally obligated to correct them. Because Tesla didn't write the blog posts. Always refer directly to the terms of your warranty agreement.
Tesla is not shy about covering marginal cases under warranty so I'm guessing there is something about your charging/usage history that threw up the red flags for them. This blog post is about a Tesloop Model S that went 300,000 grueling miles with almost no maintenance or repairs:
Tesla Model S Hits 300,000 Miles with less than $11,000 maintenance costs