MGA and his team of writers broke many Islamic rules.  In fact, they were “anti-Islam”, they criticized Christianity, Hinduism and all world religions against the teachings of the Quran.  For example, see 6: 108

And do not insult those they invoke other than Allah , lest they insult Allah in enmity without knowledge. Thus We have made pleasing to every community their deeds. Then to their Lord is their return, and He will inform them about what they used to do.

MGA and team of writers didn’t care
“””The Dajjal mentioned in the Ahadith is described by the
Holy Qur’an as the Satan, whom it quotes as saying:
(Al-A‘raf 7:15-16_)…

‘He (Satan) pleaded in the presence of God to be granted respite until those who are dead of heart are revived. God said: You are given respite till that time.’ Thus the Dajjal who is mentioned in the Ahadith is none other than the Satan who will be slain in the latter days.
This is recorded in the book of Daniel as well as in some Ahadith. As Christianity is the perfect manifestation of Satan, Surah Al-Fatihah makes no mention of Dajjal, but prescribes supplication for refuge against the evil of the Christians. If the Dajjal had been some other mischiefmaker, the Holy Qur’an would not have enjoined us to seek refuge against the mischief of Dallin [those who have gone astray] but for security against the Dajjal. The verse mentioned above does not mean the day of resurrection, because Satan will remain alive only so long as men are alive. Satan does not operate on his own, but through his agents, who are the people who deify a human being. Being a group of people, they are called Dajjal as in Arabic Dajjal also connotes a group. If Dajjal is taken to mean someone other than the misguided preachers of Christianity, this would entail a contradiction, because the very Ahadith which indicate that the Dajjal will prevail over the earth in the latter days, also indicate that in those days the power of the church will overwhelm all religions. This contradiction can only be solved by affirming that the two are one and the same.””” [Haqiqat-ul-Wahi, Ruhani Khaza’in, vol. 22, p. 41]

This reference can also be found in Essense of Islam, vol. 3

Click to access essence-3.pdf

See page 279-280