It's not much of a story - banana plants are ridiculously resilient; so long as it hasn't flowered yet, you can cut off the entire "trunk" and it will have started shooting the new leaves from the stump within a day.
This resilience applies to the part below ground too, and they're full of water, so it's a bit like trying to dig watermelons out of the ground, but if inevitably split one while digging, and you miss a bit it's just going to grow again, and if you take too long between bouts vs the plant (as with bamboo it's unlikely to be a 1-day affair for a reasonable size clump), some of the bits you cut will have broken down and started to rot, so the ground will be soggy and smell horrible.
This resilience applies to the part below ground too, and they're full of water, so it's a bit like trying to dig watermelons out of the ground, but if inevitably split one while digging, and you miss a bit it's just going to grow again, and if you take too long between bouts vs the plant (as with bamboo it's unlikely to be a 1-day affair for a reasonable size clump), some of the bits you cut will have broken down and started to rot, so the ground will be soggy and smell horrible.