You started this thread to quibble. I want to make sure I know what we are quibbling about. Also, I asked you why you considered this her signature achievement. You linked to other people rather than explaining yourself. That doesn’t answer my question.
In my opinion, her signature achievement thus far has been starting up the CFPB as its interim head. She exercised her duties commendably. She did so in a role where she served at the President’s pleasure, so the constitutional concerns raised by the lawsuit concerning the CFPB’s structure were not implicated by her service in that role. So the answer to your question is “no,” there is nothing unconstitutional about her signature achievement.
If you are going to suggest that any purported constitutional defect in the agency’s structure is due to a fault in her recommendations, you are ignorant of what she recommended.