Kyle, you'd be amazed at what he has growing there. Even Dwarf Cavendish comes back for him! It just blows my mind what he can grow, just a little over 3 hours away.
I think if one applies the same principle to growing bananas from seed as one would growing palms from seeds, i.e. starting a whole bunch of them, test them outside, and weed out the weak and non-hardy individuals, you're bound to come up with one that's just a bit hardier than the others. As long as people keep trying tissue cultured bananas, they will probably get the same results because it's the same clone. It's nice to get some genetic variability going, and you never know what you might have from seed. Could be the next best banana! Of course, I'm not directing that at you, Kyle! You are the banana seed master!
I'm tempted to buy 100 Musa coccinea seeds and try them again.