Under Geither/Lew and the Obama administration, the publicly stated goal was to wind down FnF. It was in the last two (Obama) presidential budgets.
Now Mnuchin has said that he does not want the status quo continued for the rest of Trump's term, that FnF need to be released from government control, that there should be some sort of government backstop, and that private capital needs to be in place to protect taxpayers.
The Trump administration may not be explicitly pro-shareholder, but they are in favor of having FnF continue to exist in a reformed capacity rather than wound down completely. That is a very positive change to me.