Well, did he try to tell them?
Yes, at least he tried to spread the message in this entry last year. Garbanzo was proudly pushing the benefits of good storage, especially including aeration. When grain is properly ventilated with dry air, it doesn't get a chance to form 'hot spots' which lead to spontaneous fires.
Admittedly we don't know the cause of this particular fire yet, but it doesn't appear to be arson or lightning, which basically leaves spontaneous combustion.
The current icon shows Polistra using a Personal Equation Machine.