Why 432hz Tuning?

Thank you for the detailed response.  
Unless I’m missing something here, manufacturers of woodwind instruments could make very simple, very practical, very small changes to the construction of the instruments wherein anywhere from 432 hz to 440 would be easily attainable on the spot.  
At that point, considering all the other instruments can be tuned to 432, an orchestra could play in 432.  
Am I missing something here?

@tylermunns, You’re welcome.

You under estimate what would be required to achieve this. Not at all very simple, nor small. The acoustical forces and subsequent design considerations that would come into play would be considerable. Even if possible, it would not be a simple matter of making the instrument’s tube longer. My previous example concerning the length of a saxophone’s neck doesn’t address nearly all the response characteristic and tuning issues that would result. There would also have to be complete analysis/rethinking of all aspects of the design in order to optimize the instrument’s performance. These include complete rethinking of the bore size and taper, the placement of the tone holes and complete redesign of the key work in order to account for the new tone hole placement; not to mention complete retooling of the machinery that does all this. I suspect that if it were simple to do, it would have been done already. I’m not an instrument maker to know with certainty, but I suspect that there simply is no practical way to design a woodwind with such wide tuning flexibility.

Lastly, at upwards of $70,000 for a Heckel bassoon, for instance and as only one example, there would be tremendous resistance world wide to the idea of all wind players having to buy new instruments. Not to mention the 10+ year waiting list.

@frogman Gotcha.  
Thanks again for another detailed response.