That's a ridiculous statement and the OP would be well served to ignore your entire response.
Firstly, how does the "tropics" figure into your rationale? Are the only "good" divemasters the ones who've done it in some dark, freezing Canadian quarry like perhaps you did? Preposterous.
Intensive, immersive programs that have students living, eating and breathing diving seven days a week are excellent ways to do training and become proficient. I could certainly give you some Canadians who did their instructor training here "int he tropics" of Thailand who would equal or better any locally grown example you could find.
Now, for the OP, the program and prices you cite are not exceptional. In fact, our Aquanauts Value program offers 2 full months of daily diving -- working in real-life situations with real-life customers doing real-life DM training work -- as well as a set of Scubapro equipment you KEEP, accommodations, fees, materials, job placement, visas and airport transfers for less than 3,000 pounds.
See the link below or PM me.
Don't believe the naysayers and old hacks. Just because they walked 200 miles to school barefoot in the snow in the last century doesn't make them any better than someone who takes a reputable, good quality bus.
Since you offer this type of program, perhaps your answer is somewhat self-serving? Can you say "conflict of interest". Yeah, I know you can...
However, I am someone who's had to deal with "Zero to Hero" from the tropics when they return from the sunny climes because they were unable to make a living there. Then they had to deal with real life in North America or Europe where they WEREN'T prepared to contend with students in less than perfect conditions.