When 49 major national law firms banded together late last week to condemn lawsuits targeting special purpose acquisition companies, the deal-making world took notice. To get “firms who regularly litigate against each other to agree on something” is impressive, Joseph Grundfest, a Stanford Law professor and former S.E.C. commissioner, told DealBook.

Where does the S.E.C. stand? The S.E.C. has reviewed more than 1,000 SPAC I.P.O.s over two decades and never made a demand that the vehicles be registered under the Investment Company Act of 1940, the law firms’ letter noted. SPACs “should not be hung for crimes they did not commit,” Grundfest said.