We are not all that enlightened of a society. Who cares what shape they are? It seems like they could find some other use for them still. Dry them even.
There are dozens or more banana variants as well, and we only have experience with 2 or 3 of them, plantains and bananas proper and the little mini ones sometimes. Same with other crops, and it leaves us reliant of chemicals to control pests with these monocultures, systematically poisoning ourselves and the land in the process.