Fouling up the theories of a bunch of lightweight economists

The S&P500 Committee Is Facing A Stark Choice: How To Reshape The World's Most Important Index After The COVID Shock

Not, the Wyle E Coyote moment! 

Economists discover the 'market' is an index, and stock market theories are rotten when the index is not a representative sample.  This is like discovering we are not flat earth, causes a Wile E Coyote moment.