Yeah because that's what people are suggesting 
And actually claiming it would have had no effect on the speed at which the fire spread is equally ridiculous !
The insulation had poor fire protection, using cladding that has a better fire resistance would almost certainly have slowed things down!
If number 3 has a higher fire resistance than obviously it takes longer for number 1 to start burning

And actually claiming it would have had no effect on the speed at which the fire spread is equally ridiculous !
The insulation had poor fire protection, using cladding that has a better fire resistance would almost certainly have slowed things down!
If number 3 has a higher fire resistance than obviously it takes longer for number 1 to start burning