I'd rather see an immediate assessment of the fire situation after stopping which includes checking with cabin crew who are far better placed to see any developing fire.
While certification tests have demonstrated the airframe will tolerate brake and tire fires after a reject for three minutes before ARFF intervention, all bets are off for any other fire situation.
The very first PA should be "Cabin crew report airframe condition"
Failure to respond to the interphone delayed this evacuation. Some day a fire will develop more quickly and a similar delay in assessing for fire will cost lives.