The producer says most of her clientele are vegans...
This is one of the exceedingly rare occasions when I'm not on the side of bad punning. :|
When I became a lacto-ovo-vegetarian, eggs were the first additional thing I removed from my diet, and I remained a lacto-vegetarian until I went vegan.
I've read about this issue that chicken sanctuaries have before. Of course, they generate a lot of eggs, and in some cases even the owners ate them. It's difficult to finance animal sanctuaries (unless you rescue donkeys, I suppose), and, of course, the hens don't care about unfertilised eggs they lay, so selling them seems logical. However, there are enough omnivores around to make thata success without 'veggans' being among the customers. Notwithstanding the finance issues, I still think eggs should simply be left (or transferred outside the sanctuary) for other animals than humans to eat, but of course understand why sanctuary owners make that decision.