Tillerman: Even if the pumper arrived first, wouldn't the highest priority still be Rescue? (RECEO) Why would you start putting the fire out before trying a rescue?
Think back to protocol and training, realising the fact the the safety of the firefighter is number one. If you don't have BA crews spare (emergency crew incase the initial BA team go down) you cannot take part in any internal attack. (Remembering you need the resources so if that emergency crew does go in, there is then another standing by... etc etc..)
Secondly... Is the dexterity of the building under too much doubt? EG - Do you know for sure, and better yet, prepared to send your crews into a structure which is well involved in fire, and has a highly probably chance of collapse.
Being a two story structure, and having both stories on one side well involved, I would be less inclined to send crews in. The effect on the core strength by having both ground and first story floors well involved, has a greater chance of collapse than a single story building. The continuing downward pressure of the top story and continual fatiguing of the supporting beams between stories 1 and 2 wouuld suggest to me that the 1st story and roof are very soon going to collapse. - Although, every job is different, and could result in very different outcomes..
I have read a number of valid and differing ideas on how to combat this situation, most of wich are practical and quite feasable. It goes to show the many different methods in which we can fight various incidents. I think the most important thing to realise is there will never be the "one" clear and correct answer... Every job will be different... The emotions of bystanders and relatives / householders who managed to get out would be huge! Especially with persons reported trapped.. You will be highly criticised at the job if it appeared you made no effort to get in and rescue people, you will be even more scrutinised by the media/public in the days / weeks after... The number of changing factors which could occur at the job will be endless and the outcomes infinite..
So in summary.... Firefighter safety is number one... and such an incident would indeed be a challenging one !