What genetics are in play here?

[brock lesser]

A reputable breeder always lists fewer genes when a gene is in question. That way they don't have to deal with a disappointed customer. A reputable breeder would rather not make as much on a single sale, so that their customer is happy and possibly get a additional purchases from that customer, or get referrals from that customer that lead to other sales. There is a good chance that you benefited from such a situation.

I agree 100%.
I would rather take a hit to the wallet than a hit to my reputation any day.
The money loss you can recover, the reputation not as easy to recover.
I don't even chage extra for hets, not worth the hassle.