Flooded Mineshaft by local water level (1.17)

As we heard from the live stream the cave update is coming, But what will happen with Mineshaft? Will they stay the same boring 3x3x* hall ways with no variation? We will see :)

But i am here to suggest (along side another feedback post to have variant type of mineshaft) to also have flooded Mineshafts

Any Mineshaft generating below the local water level would be flooded up to the water's level height.

This would represent what real life abandonned Mineshaft are. Some can be very well flooded by water that has slowly accumulate there over time.