It's always a pleasure to encounter your passive aggressivity, but if you have some ideas beyond the "fact" that you're right, I'm all ears. But all I've seen is you wanting to be correct, and being generally snarky.
Again, if you've got some facts I'm willing to entertain them, that's why I'm participating in this thread. I don't think I'm the keeper of all knowledge.
Again, as to the OP's question, my reasoning for not having hoses is that I think that the introduction of additional points of failure is counter to what I want on a cave dive.
My view of diving in general is that one should look at each piece of equipment and ask, "Is this necessary?" If the answer is yes, then keep it/use it. If the answer is no, then don't keep/use it.