What the world and his dog sees, when looking into Microsoft, and trying to work out how to send data in and out of it's software without problems, is much what teams within Redmond see. The Microsoft warren is an intricate battleground of minor fiefdoms based on the mutual hatreds of inividual managers and their underlings, who actively conive to keep bits of their projects from view.
The fact that CIFS, for instance, is an arcane and mysterious soup, to anyone on the outside, is as much a function of the way the CIFS team intracts with the people at the other end of their own corridoor, as it is, how they regard Samba. CIFS used to be SMB. Why did it become CIFS? No one really knows. It doesn't matter. We'd shoot you if you fund out. NT LM; NBT, NetBT... rename your acronyms every few years. It keeps the enemy guessing. And by 'enemy', we mean those bastards in Exchange Server and IIS.
If you've ever been baffled by the way that Microsoft's own products fail to get on with one another, then the answer is that This Feature Is By Design. Sam Ramji isn't some mouthpiece for MIcrosoft, The Corporation: he's just the manager of That Team Over There. Doubtless there are any number of knives, with his name on them, to be found around the Redmond campus. He probably has an easier time gretting answers from the people at MySQL, than he does with anyone from SQL Server.