The mandate of the President's Working Group on Financial Market is extremely broad and ambiguous. It's primary mandate is to maintain investor confidence. Yellen/Obama used this mandate as a political tool to elevate markets. Suppressing vol became the go to trade of the NY Fed and led what unfolded in early February under the new sheriff in town.
I was struck by a particular statement Powell made during his recent testimony before the Senate. In response to some question he answered and added that it is not the Fed's job to see that investors are protected from losses in the market, and he repeated for good measure. I don't see the ppt being as active going forward and a return to normal volatility, two way market.