Great quali!
I blame Ferrari's flunk, preliminarily, on arrogance. Strikes me that when you've had all morning to prepare for a quali session, farting about casually in your garage well into a qualifying session smacks of complacency. They left Kimi without enough time to address any issues during the session, and I think they let themselves down as a result. I remember Button doing something similar, once upon a time, and getting pulled into the weigh-bridge, leaving him without enough time to get a flying lap in.