Al-Kadhi states:

For the answer to this question please refer to chapter 14 which discusses the use of plural pronouns with respect to God in both the Bible as well as the Qur'an. Please also read point number 1 in section 1.2.2.6

Even though Al-Kadhi but defer an answer, he nevertheless feels he can cross Genesis 1:26 from the list. That is merely a psychological trick giving the impression of another section of "victory", without actually providing any content or evidence at all that would justify such "satisfaction".