These folks were still actively spinning "Oh don't you worry, golly gee wilikers this will all just blow over and, besides, on April 1st it'll stop being a thing." - while dumping their portfolio. They clearly acted immorally, they also pretty clearly broke a number of laws around senate behavior (insider trading is a thing for senators), and I think one of the best outcomes at the end of this might be forcing all elected officials to commit their assets to blind trusts.