Didn't mean to scare you, Corey. Your depth is fine. Just that you didn't have to plant that deep. I've planted hybrid tulip bulbs twelve inches deep in lighter soils and they came up fine. Hybrid lilies are very forgiving.
I am finding that lilies are really a lot more cold hardy than people think, if they are happy. For orientals in the north, acid soils greatly improve cold hardiness, for example.
