From a purely logical perspective the same would be true of situations where pure but difficult to obtain and highly desirable species are brought in in limited numbers. Yet when a breeder manages to legally get a new species or morph of poison frog everyone expects the prices of the initial CB offspring to be high, he is expected to make some money, and nobody rails against the greed of the breeder for not initially selling them in the same price range as a readily available CB species like auratus.
People who are so millitant that they stress about hybrids in species they don't even breed themselves need to loosen up a bit and realize that most people keep frogs because they like them, not because they are trying to save the planet. If someone wants a hybrid pet frog 90% of the time it is no skin off any other hobbyists nose. The same goes if someone wishes to produce hybrids.