The article is generally correct that hiring in finance has been overdone for years and will now permanently contract to a more sustainable level. That also means that MBA enrollments should contract, since the workforce won't need so many MBA-certified people to replace existing employees. The MBA degree will eventually revert to what it was decades ago, when the top 20 programs were a rite of passage for blue-bloods destined to keep publicly held companies under the control of private families.
Let this be a warning to anyone considering an MBA as a prerequisite for a career change. Don't do it, people. You don't need it to get the entry-level jobs of the future that will be available in farming, recycling, and suburban deconstruction.