This just isn't true at all, unless you personally define "reputable hooka manufacturers" as only being those that conform to your belief in what length hoses they sell.That is why the reputable hooka manufacturers only sell 30' hoses with their rigs.
Your argument reminds me of the ones against integrating autopilots with other instrumentation because they could be used incorrectly that way.
I don't know anyone using hookas to do deep recreational diving in lieu of tanks, but I know many, many people using them regularly in <30'. Most in <10' for work on their boats. If it is an electrical-powered hooka, it is definitely only being used within a few feet of the main boat.