We dont have direct response from Denis. However, we have an answer provided by Juan Cole who is his friend and also a Former Baha’i. This reply can now be found on Frederick Glaysher’s website who is also a Former Baha’i.
Denis MacEoin did not withdraw from the faith, he was chased out by powerful Baha’i fundamentalists who were deeply threatened by the implications of his historical work. Denis became a Baha’i in North Ireland around 1965 and quickly emerged as a Baha’i youth leader. He was chosen to come to Haifa to commemorate the 1968 anniversary of Baha’u’llah’s Letters to the Kings.
He then wrote the House saying he did not know whether to serve the Faith by becoming an academic scholar of the Middle East or by going pioneering. They wrote back that either path would be praiseworthy. (They later stabbed him in the back about this). He therefore entered graduate school at Edinburgh in Middle East Studies, then went on to Cambridge University for his Ph.D. He was the first academic to study the Babi movement with all the tools of modern scholarship, and his findings were groundbreaking.
Denis made the mistake of continuing to be an active Baha’i. Since the community is so heavily dominated by aggressive fundamentalist fanatics, if a genuine academic wants to be a Baha’i s/he has to keep a low profile. Denis did not. He gave summer school talks. He was once viciously attacked by Abu al-Qasim Faizi. His new ideas were upsetting the conservative British community. He objected when the Baha’i authorities supported dictators like Pinochet and Bokassa. He corresponded with the Los Angeles Study Class and some of his letters were published in their newsletter (a newsletter that the Baha’i authorities later closed down, for all the world like Tehran ayatollahs pulling a publishing license).
Around 1980, fundamentalist UHJ members Ian Semple and David Hoffman called Denis to a meeting and told him he would have to fall silent (rather as the Vatican did to Leonardo Boff). Hoffman was especially harsh. Denis declined to fall silent, and ultimately withdrew from the Faith. He was pushed out by anti-intellectual bigots who had risen high in the Baha’i hierarchy and become Infallible. Denis’s works on the Babi and Baha’i movements are some of the few pieces of solid scholarship that exist.Instead of being grateful to him for sacrificing all those years living in penury as a graduate student, studying Arabic and Persian, traveling to a dangerous Middle East, all for the service of Baha’u’llah, the community could think of nothing better to do than viciously attack him and throw him in the gutter of infamy.
Denis’s story is the story of most thinking people who have anything serious to do with the Baha’i faith. Either they adopt a cult-like mindset of true believers and covenant breakers, in which case they gradually cease being thinking persons, or they get chased out by the wild-eyed. A few people manage to avoid either fate by not drawing attention to themselves. The Baha’i Extreme Orthodox are like the Borg in Star Trek. They want to assimilate you, but might leave you alone if you stay quiet.