It certainly doesn't give a true picture.
For example, the claim that the "Arab decision to invade in 1948" caused the refugee problem is blatantly untrue, as there were already a lot of Arab refugees before that. For example, Jaffa was attacked and conquered, about 60,000 Arab refugees, Haifa was conquered, another 50,000 or more refugees, a corridor was driven through the West Bank to Jerusalem, more refugees.
All before the state of Israel was declared, and the neighbouring Arab armies attacked.
The simple truth is neither side accepted the borders of the UN partition plan, and the Jews, being much better organised and armed, went on the offensive long before their independence to increase, by force, the land that had been granted to them under the UN partition plan.
It also says that most of the area allocated to Jews was desert, without pointing out that Jews comprised 30% of the population at the time of partition, and were granted 55% of the land under the partition plan (ie the Arabs comprised 70% of the population, the Arab state was granted 45% of the land)