It sounds the colour question has been taken by some the wrong way.
My dogs are from primarily show lines, however they have strong obedience/agility capabilities. Herding dogs (ISDS or similar) and show dogs are two vastly different groups in Australia. Much I would presume as it is overseas. The ANKC does not recognise the working sheep dogs and vice versa.
Even amongst the working sheep people here, dogs which lack pigment (no matter how good the parents working ability is) are frowned upon and I know of cases where they have been drowned at birth.
The question of colour comes NOT from wishing to breed colour, but to avoid severe dilutions of colour. Both dogs show very good capabilities in their chosen field of obedience/agility, which is the reason behind the thought of breeding the two. However as they are coloured dogs, there is that to be considered as well.
If the board does not wish other people who are not members of the working sheep fraternity (which I am also a member of in OZ), then it should be restricted to those members and not be an open forum.