I do not know to what extent the eucalyptus trees played in the Los Angeles fire and I'd suggest that at present no one does—and they won't until a proper scientific/forensic analysis has been undertaken—and with due respect to the learned people you've quoted, neither do they.
The fact remains that in California our beloved eucalyptus trees are a both an invasive species and a dangerous, fire-prone hazard, and prudent thinking ought side on getting rid of them.