All that the public protector did was pass comment on something outside of the question she was asked to answer, provide no justification for the action (the whole argument is two paragraphs; making it irrational), and ask for an unconstitutional action to take place (taking the power of parliament). If this is castigation then there something extremely remiss. 

If the ANC western cape wishes to change the mandate of the reserve bank then fine and well, but dont pretend that a legitimate process has been followed, go to the correct parliamentary oversight committee and get that ball rolling. Or amend the constitution through a bill. 

Anyway the other points are OK, communication over their roll in oversight would be appreciated given the various agendas flying around, but I imagine it that it is impossible for them to discuss changes the mandate as they have to implement it (the critical difference between civil and political servants).