Olive Oil:
The overwhelming evidence is that two competent pilots flew a serviceable aircraft into the ground whilst IFR.
Not quite Olive;
The overwhelming evidence is that two competent pilots flew an unairworthy aircraft into the ground whilst IFR. I suspect that "they were trying to fly an unairworthy aircraft to avoid it flying into the ground whilst IFR, but failed", would be nearer the mark. How on earth do you conclude that the overwhelming evidence is that the aircraft was serviceable when it crashed?