Hi. Sorry for the late response, was away for the whole day. I think we would be okay with this if you were otherwise the best player ever, but on the other hand it may be a better idea to find a guild which is less anal about these things. The fault lies within Blizzard for ignoring the feral spec entirely in their itemization. The items that do exist (before AQ40, I think they realized their mistake/this opportunity there), exist because of chance, not because they thought about making them. It would explain the perfect feral itemization for a few slots and the complete lack of it for other slots.
In the end, I personally would expect people to do a bit of research into their gear in advance so they wouldn't make choices like this (such choices are ahead later on in the game as well but to a lesser extent).