Hope of managing the infection is fine. False hope about curing it is the problem a lot of people get upset over.
How about false hope of "managing" the infection? So far the anecdotal success rate for things like ginger, etc. are on par with playing Russian Roulette. Sooner or later your going pull the trigger on that loaded chamber. In the case of Ich (Cryptocaryon), the parasite and successful treatment methods are so well understood and known that I can't see even taken the risk of not going for a known cure.