I'm not reading too far into things, I'm looking at things objectively. At the beginning of the book, Allen thanks his "spiritual coach J-R." He is referring to John-Roger, the founder of the MSIA cult. GTD started as seminars given to members of corporations. It is no coincidence that the MSIA cult started as a series of spiritual seminars. John-Roger went on to author a self-help book called Life 101 [1]. Paul Allen went on to author a self-help book called Getting Things Done. You can find online allegations of the seminars being used to recruit people into the cult. There are allegations of the cult telling women to abstain from marriage and perform sexual acts on their leader who is god incarnate.

[1] https://www.amazon.ca/Life-101-Peter-McWilliams/dp/093158078...