Cloned plants are great for production for awhile but genetic diversity wins over time.
then again, bananas will never pushback against footing the entire bill, so they'll probably get wiped out.
why do you think they're having some trouble finding banana ancestors? how much banana is there left?
Luckily for us, banana plants grow like bromeliads. They flower and fruit then die. But not before sprouting several new stalks. So they're really easy to propagate by separating the new stalks once they get big enough.
Someone else posted this excellent article on it:
https://www.damninteresting.com/the-unfortunate-sex-life-of-...