Culinary herbs like rosemary have tons of varieties. This is likely the reason but they should both be fine to eat.
The number of different basil varieties / cultivars in Culinary Basil (Ocimum basilicum) is mind blowing. That isn't even counting the different species of basil such as holy basil (Ocimum tenuiflorum).
I had it and I liked. Did I feel a little disgusting having it? Yes. But if someone offers you deep fried ranch at the MN State fair you got to try it.