So then, Brian, you think anyone who wants to dive in caves should have to get their training in Florida? Because you can't TRAIN high flow in Mexico -- it doesn't exist anywhere where you would take a student in his initial cave class.
Each environment has its own challenges. I don't think it's bad advice to tell someone who has no experience in a given environment, whether it's a cave situation or open water, to get some experienced help to negotiate that environment's specific challenges. If you come dive in Puget Sound, I almost guarantee you you would like some help in choosing sites with respect to the tides and currents. If I go to LA, I like some help figuring out where the best place is to do my entry, and in Monterey, you really need local help to decide when Monastery is safe to dive (it's very deceptive). You are only on top of the kind of diving you have already done, and going from MX to Florida is an exercise learning to cope with flow. Going from FL to Mexico is an exercise in finesse, and in navigation -- no FL cave diver has had to cope with the kind of navigational weirdness (like six inch reach gaps) that we see in Mexico.
BTW, your posts sound eerily reminiscent of my Cave 2 instructor, and that is NOT a compliment.