Ewing did have her throw off her golden head adornments and destroy her throne in Red #1. I get that monarchies are unpopular in the real world, and for very good reasons, but within the context of Storm's journey as Voice of Sol and Regent of Arakko, there was a bit too much bristling at the 'confines' of such a position of leadership for my taste too. That said, despite her misgivings at the beginning, I think these last few months of stories have proven that she will always step up as a leader for people in need when the time comes, so I don't think it's some plot point that was overlabored.
The best leaders are those who do not WANT to lead. It is that grasping for power and prestige that is the real poison(as we see with Sinister(s) wanting to rule the whole of creation). I think because we have seen power corrupt so much in the real world, Ewing goes out of his way to show that while Storm is extremely powerful, and great at leading others, she would rather such positions not even be necessary. It's a conundrum, and reasonable, given Ororo's arc all the way back to the beginning. While doubting her ability to lead made sense at the beginning of her adventures, when writers harp on it too much these days, it does become grating(such as in Wood's or Guggenheim's runs).
I think Ewing has done a good job of addressing it, but also showing a person who steps up and transcends her own personal opinions for the greater good of others(even if that includes putting on a crown, so much so that her diadem has become the very symbol of her movement, a century, or even a millennium after her destroying those scraps of gold and the throne on Arakko).