If you have hybrids in your tank then either you need to keep them yourself and don't let them breed, or you cull them. The problem has always been that if you pass hybrids on you rely on the honesty of the person you give or sell them to in that they won't breed them and sell their progeny as pure bred fish. That is why there are some dreadful looking fish seen for sale.
So I guess fishy fish, if you don't want to keep them in a hybrids tank and no one you know wants them, then in the interests of having only pure, quality cichlids in NZ you are best to cull them.