I would say it looks a bit hokey there, especially because of the irregular mottling.
There is a situation where leaves may look diseased but it is really a nutrition uptake problem. They will look light green between the veins (veins being darker green). It is always a good idea to get a picture and post on this forum if you have suspicious looking lily flowers or foliage. Unlike irises, I don't believe there is any such thing as broken colors in lilies that is not caused by disease.
I seem to remember the days when Dutch Gardens was a better company. They would put several order forms in the catalog and we would save on shipping by combining orders with friends. I got a mislabeled daylily once but that is all that I can recall. No diseased plants. I think they may have been bought out by a corporation that doesn't care and I don't order from them anymore.
