While there can be no definitive answer to the question it is true that various Adepti have recommended great caution in working with Enochia. An enormous amount of work on Dee's systems was carried out by Frater FFE from the New Zealand Whare Ra Temple of the Stella Matutina. FFE joined the Order in 1914 and remained a member until his death in 1968. He reached the Grade of 9=2. In the 1930s he visited the UK (where he visited the Chiefs of both the AO and SM) and purchased photostats from the British Museum etc., of every piece of Dee's angelic and Enochian work. He produced many papers and in one of these he sternly warns that no member who is not a senior 5=6 member, and preferably 6=5, should experiment with Enochia beyond that recommended in the curriculum. Even this should be done under the supervision of the Chiefs. He cites some extremely unpleasant experiences he had as a result of being insufficiently prepared and advanced. Elsewhere, in another document, he notes his belief that the reason why far more dabblers have not had similar experiences can be attributed solely to their incompetence which has protected them.
Having said this he did not believe in any way that the system was 'demonic' or 'evil', but rather very powerful and potantially capable of unleashing forces destructive to the inexperienced Adept. He did not argue that the system should not be used in the Order. This view was echoed by Frater FL who joined the SM Order in 1936 and remained until the Temple's closure. He reached the Grade of 7=4 and also carried out much work on the Enochian system. He knew Ann Davies from BOTA and considered the objection of Paul Case (which was endorsed by Ann Davies) to be irrational and indicative of a fear of magic. There is much evidence for this view in the sense that, in creating BOTA, Case eliminated or watered down much of the magical system of the AO/GD. Indeed, virtually none of the Second Order curriculum was carried into the BOTA Second Order and which, I understand, hardly has any curriculum at all, magical or otherwise.
Case's objections to Enochia were never really argued by him. Of course the wife swapping incident (which he took from his reading of Casaubon) made for a flimsy basis to reject Dee's work, particularly considering some far more gruesome recommendations found in other sacred texts. Case also argued that the system was not Rosicrucian and that Macgregor Mathers had illegitimately imported this aspect into the rituals. Consistency was never Case's strong point however and he nevertheless introduced Tablets which are almost facsimiles of the Mathers' GD/AO Tablets except that the Angelic forces are Hebrew (some rather bad Hebrew at that) and not Enochian.
Notwithstanding his undoubted ability as a populizer of Kabbala, Gematria and the Tarot, Case's knowledge of ritual magic, including Enochia, was remarkably slim. With only around 2 years in the Second Order before he was expelled, Case had never received the majority of 2nd Order papers. Indeed, the US Temples of the AO complained about this very fact to J.W. Brodie Innes (Mathers' successor) who only began to send further curriculum material at about the point Case was expelled.
The point of this laborious deviation is just to suggest that Case's opinion on Enochia appeared to be based on little more than a hunch and certainly not on any informed acquaintance with the system.
A. Fleming