Straw man: knowing the MMR performance metrics does not require having the source code.
You seem to believe:
-
This information is too dangerous to know.
-
It is OK for Blizzard employee-players to know it (Can Blizzard Employees exploit Matchmaker Insider Information?).
-
Even if you knew the information it would have little impact; just play to win and you’ll get fair matchups.
Is that a fair summary of your position?