on the tangent, yes all banana hearts are edible, however you would have to stew them very long, and there is very little soft heart, the rest is very stringy and hard to chew. Like coconut hearts, palm hearts, bamboo shoots, artichoke hearts, there is the 'softest' and best part which is at the very center, and then the quality degrades the further you go out. I feed my pig whole banana trees, and the pig eats them as something to do with her day. Here, some commercial pig farmers will chop up bananas and boil with feed.
Your average dwarf williams, or other large stalk dwarf banana only produces a heart about the size of a banana. It is not commonly consumed.. like your post, it is a famine food.
Thanks for your interesting post, never heard of that type, but here have Ensete glaucum, that does not have suckers. The flowers have some herbal tradition. I have over 20 types of unique bananas, but I stay away from anything with seed.