I had a look at the paper you present and only a preliminary view shows how biased the author of the paper is while he is in fact confirming the bias of Israeli textbooks, for example his refutation of Assertion 4 the one you presented does not cite any evidence unlike he does with the other bits, which can only lead one to assume that it is completely made up, but the real mackoy is Assertion 1. The lady claims that 'Palestinian' is avoided by Israeli textbooks and replaced with Arab and this man presents all the cases where 'Palestinian' is mentioned in Israeli textbooks and the only cases presented as cited by him are within a negative context:
We can observe that this assertion is contradicted by the extensive use in the books of the term ‘Palestinian’ in discussions of the historical conflict between two national movements in the country. Here is a short list of examples.
Book 2: “the Palestinian national demands” (page 160), "the Palestinians' national awakening" (page 166), “the Palestinians’ arguments against Zionism” (page 181) and other such mentions on pages 161, 167 and more.
Book 3: “the crystallization of Palestinian nationalism” (page 79), “the Arab-Palestinians’ national demands” (page 83), “Palestinian nationalism” (page 92) and other mentions on pages 81, 87, 95, 182 and more.
Book 4: “the Arab-Palestinian public” (page 95), "the Arab-Palestinian nation”
While the neutral words like 'nation', 'public' suddenly become 'Arab-Palestinian', by the time you reach to farm you 've got to 'Arab'.
So if these are the instances where Palestinian is mentioned then one can guess that in all other instances like for example Palestinian wheat, or Palestinians farms, or Palestinians factory, the Palestinian is replaced with Arab, which is exactly what the lady is claiming.
Last but not least, Israeli scholars as per the OP are protesting against the racism of Israeli textbooks by removing their own names from the credits. So it does not really allow much room for doubt.
EN EL ED EM ON
...take your common sense with you, and leave your prejudices behind...