wel he has the darker points on his legs and head and his blaze does not go over his eyes and he doesnt have a white spot on his lower lip!?!?!?!?!!?!
I am not sure why this is upsetting you? Your horse is a very pretty color however he isnt a roan. If he were his head would be very much darker as would his legs as others have pointed out. He is a very pretty colored sabino
The parents could not have been true roans at all since the there parents were not roans. It doesnt make your horse any less then you thought he is simply not a roan.
In fact there is a possiblity -probability that you will get lots of chrome on foals from him if he is a stallion!