I'm unaware of any tactical response protocol that includes burning down a building around a suspect.
I don't know of any protocol of the sorts either...
...and not saying Spats is making the accusation that that was the intention of LE at the scene.
Coincidentally, I was thinking about Waco when Aguila Blanca
posted his Philly article. Which also makes mention of Waco.
As was said earlier, gas grenades/canisters can cause fire. At this point, there is really no clear evidence pointing towards anything else being used to start the fire and it would be unfair to accuse LE of purposely setting the fire.
Purposely trying to gas him out yes. Purposely trying to burn him out ?... ...gotta come with better evidence then what's been shown here.