Let's clarify things a bit.
1. Timeline. On April 14, when the original post has been published, I immediately noticed that an image used both as banner and as one of the images in the text were of the Isle of Skye. Since during the promotion of the 80 Workshop I led so far I never even thought about using an image of a different location to promote one of my Workshops, and with the only purpose to help and to prevent the great Julian Calverley from experiencing what actually happened next, I immediately contacted on the same day the OP privately to point that out.
Unfortunately, as it turns out, nothing has been done following my message.
On April 29 another forum member made fun of the very thing I pointed out, which as a fellow professional photographer and workshop leader is exactly what I feared would happen - and what prompted me to privately write to the OP in the first place. At this point, since in over two weeks since my heads-up nothing had been done, I obviously assumed the organisation were happy with that - and I posted, publicly this time, in that sense. End of story: I NEVER said nor meant that the organisation were trying to pull the moss over people's eyes, or anything of that sort, so please do not put words in my mind that I never said nor meant.
2. Despite your saying so, I fail to see how showcasing an image from a different place helps reflecting that "Julian is lending his considerable talents to walking through his workflow from capture to post process for the attendees". I think it's clear to anyone that an image from the actual Workshop's destination would have reflected the same, and much better so: not only it would have showed Julian's huge talents, which nobody doubts (least of all myself, a huge admirer of Julian and his work) but it would have showed places that the attendees would expect to actually see and be able to work on.
So, I am happy that you recognised the need to "clarify" things, and I am happy that my post actually helped made that happen. If, to do so, I have to endure some unwarranted and gratuitous attacks, so be it.