It's an interesting read with some valuable points. It seems the issue is only getting worse as well. The desire to keep servicing 'in house' has spawned a market for fake parts and the costs that Omega, Rolex and such like are charging to service a watch is beggers belief.
There is no other reason for the refusal to supply independent watchmakers the parts other than they want the service work themselves, the cost to the industry as the letter states is that the independent watchmaker goes the way of the dodo and with them a set of skills and knowledge that i would imagine is irreplacable.
:(