Mnuchin has been working for the Trump campaign for over a year. Nothing here is new.
Cruz was criticized because he got personal loans from GS bellow market rate and tried to hide it. I don’t recall any criticism of his wife.
My take on this contretemps is that there are many willfully low information posters regarding past posts vis-a-vis Goldman Sachs - Where Senator Cruz and his wife were treated with MUCH dis-respect
working or having worked for Goldman Sachs would indicate a very highly motivated individual as far as I am concerned.