I listened to the tape. “Burners deployed, we have a fire.” is very clear on the recording.
Whatever else one thinks about this, the facts of the cause of the fire should be told and know.
Not sure if you know the answer, others may. Is fire setting equipment and practices a normal police tactic? I know the Reno and Co. caused the fire at Waco but I don’t recall ever hearing about LEO’s purposely setting personal property on fire. If was the cabin owner I’d be damned pissed off.