It doesn't take a genius to realize that the twitter account is controlled and written exclusively by the mother. Bana is being used in a propaganda war. The family could have left Aleppo during the last couple of months if they wanted to find safety elsewhere instead of staying in a war zone with the terrorists and cry for world sympathy via hyperbolic messages.
If the terrorists prevented them from leaving, and there is ample evidence that this has been the case for civilians in eastern Aleppo, then Ban's mother should been honest enough to tell the truth about the situation instead of constantly blaming the Syria government for doing its duty, namely trying to take back the city from the Nusra Front (aka Al-Qaeda) and its affiliates.
Yes mothers should protect their children, but I'm afraid that Bana's mother is endangering her child's safety by refusing to leave the city in addition to cynically using her to give a selective and less than truthful version of reality in Aleppo.