Yeah, it makes no sense that White Spirit Dragon and Azure-Eyes do not count, when the event count Deep-Eyes as a Blue-Eyes, and all those Magician Girl cards + Mahad as Dark Magician.
Spirit of White doesn't count and that's why many people never include it into the farming deck. I have only 3 Blue-eyes, 1 Deep-eyes & 1 Solid Dragon and they are more than enough. Use deck thinning cards to dig them out.