Thank you Paphipboy. So, it seems that while the plant may have left the breeder's greenhouse bearing the wrong name, there is no evidence of the breeder deliberately mislabelling it. The plant simply got the wrong tag in the pot; as unfortunately, often does happen.
However, the growers; who are "well respected and a tireless workers" (and therefore, must have been around in the orchid world for some time and have gained a fair amount of experience along the way), are choosing to maintain the status of an obvious and undeniable mislabelling. In doing so, they benefit by getting to keep the award and Grand Champion status given to this plant.....as a malipoense. Plus, since the breeder was not disclosed to you (Paphioboy), how can the growers say that they are protecting the breeder from being discredited? If people don't know who the breeder is, why go to such lengths to protect the breeder's reputation? Besides, that logic is flawed. Maintaining an incorrect name on a plant will continuously have the potential of discrediting the breeder. To correct the mistake now, maintains the breeders reputation, should his identity become known. After all, it is an incredibly high quality NH. If the breeder is ethical, I should think that he would A) appreciate learning of the correct identity of his cross and B) probably enjoy extra business because of the high profile of this awesome NH. A breeder that wishes to perpetuate misinformation rather than simply correct it, is a breeder that is deserving of being discredited. By refusing to consult with the breeder and correct the mistake, the grower is causing discredit, not preventing it.
It seems to all come down to the grower's desire to simply continue to enjoy the spoils of this unfortunate misidentification and it has nothing to do with the breeder at all. The growers are either embarrassed and stubbornly unable to simply admit that they made a mistake in exhibiting this plant as pure malipoense; or, they want to profit (financially or otherwise), from the current award status of the plant as a malipoense. Either way, they are not so deserving of being "well respected". If that plant is used in breeding as a pure malipoense, Australians can look forward to a contaminated genepool in the years to come. I don't respect anyone who would deliberately do that.