More than 100 MBA programs were closed from 2014 to 2018:

Several U.S. business schools have closed their struggling full-time M.B.A. programs in recent months, and the coronavirus outbreak may endanger more.

Source: Covid-19 Prompted Purdue University to Shut Its M.B.A. Program. More Closures Are Expected. – WSJ

The costs of full time, in-residence, on campus programs has become to unwieldy, say the schools. And with the pandemic, in-residence programs are essentially going away. A related factor, now, is the collapse of their international student enrollment.

Analysts think there could be only a few dozen in-residence MBA programs left, within in years – and those primarily at the elite schools.

Coldstreams