Pink with turquoise leopard spots... now that's a pretty wild one Heather! Based on my experience with cichlid fish hybrids; once it starts, it would not stop. Flowerhorns and other Central American cichlid hybrids have been around for over 2 decades and still attract fans, specially in Asia. New Discus fish hybrids and morphs appear every year and there is a worldwide demand for them.
Good news is that the frogs been hybridized (or morphed) are Darts (strongly discourage among hobby) or similar and they produce small manageable clutches. Also, Pacman and many other frogs are not easy breeders; so even if they hybridize and produce large numbers, its limited to very few experienced keepers or breeders.
What is needed is responsible breeders and hobbyists willing to cull any excess, unwanted or defective frogs; rather than passing a hybrid for a true species or natural morphs. If not, the only pure guaranteed species would be available in the wild, and we all know that the source can't be exploited forever.
Wild frogs are losing their ground to human habitat destruction; diseases are wiping out entire frog populations, and incoming global heating will change many habitats in the next 4 decades. Cold blooded animals like amphibians will have a very hard time dealing with it and many species will probably go extinct. And sadly, we might not be able to help much if we are too busy struggling with our own survival.