My opinion comes from the literature I read studying political science and international affairs in college during the late 1990s, the literature I read studying law a decade later (I so miss free journal access), and generally following the academic discourse for the past 20 years.
In any particular year people tend to mine the longer trends for evidence related to whatever is most interesting at the time, thus the millennial angle in the Curbed article, or the extended discussion of the Great Recession in the Brookings paper, but if you go down the rabbit hole, both in the data sources and the academic discourse, discussions about the larger trend come into the foreground. Anyhow, I was asked for some links about the trend in work relocations, and I provided some, trying to balance my own sincerity and convenience. The millennial and Great Recession sidetracks notwithstanding, the prima facie evidence is right there. Who cares what graph they're showing? I provided the links for the words, not the pictures, and the heading of that article says "After 40 years of steady declines in domestic migration, mobility has hit a new all-time low". (Anyhow, if the graph presented the only reasons people moved, it would only make my point stronger.) Follow the primary sources, even (or especially) if you're driven by incredulousness--nothing can motivate hours of sleuthing like Internet rage. That's what makes the Internet so great.
Sometimes I catalog useful links to primary or important secondary sources, but I don't really have any at hand for this topic. There's nothing particularly disputable or even (IMO) counterintuitive about the trend except for the implications, but in this case you merely challenged the basic assertion that people are moving less for work.