I thought Maia and Alex did what they needed to win, and they deserved the victory, although maybe not by as much as they won by. Their program is engaging and emotional and provides a great platform for the two of them. However, looking towards Worlds, the results at this 4CC only seems to strengthen P/C's case for defending the title. Had WeaPo had a decisive victory, maybe they could present a challenge at Worlds. Either way, I think the choreography and beauty of Papadakis and Cizeron's skating are really heads and shoulders above any team in the world right now. If you haven't seen their free skate this year, I recommend you take a look -- truly breathtaking. Maia and Alex are energetic, focused, and engaging, but Papadakis and Cizeron are mind-blowing, exquisite, graceful, and effortless.
We never know with the judges. Maybe some judges don't like P/C style (contemporary dance, no acrobatic lift, and their unique style that now nobody can do) and could prefer Shibu or W/P.
Their SD is their weakness. They started with a big disadvantage (and we often forget this one) like the commentator said : they didn't have the opportunity to have the feedback from the judges, to grow, improve their SD, to bring changes. Their competitors could skate more than 6/7 times and more. I hope two months will be enought for them to catch up.