In how many groups this guy made this post ?
lol
Ok
"The match simulation engine takes many factors into consideration and we are not aware of the exact formulas that the engine uses"
"We have no information ...."
"From personal observations ..."
"I believe that ..."
That's far from being an official answer. It looks more like an answer from Khris

Anyway, that's like Coca Cola's super secret .
It has billion of fans, it has thousands of employees but only a handful of people knows the recipe.
So I believe only few nords know how the engine works.
Some of the old staff have left so they are fewer now.
If
Fingolfin for example could answer this, I would believe that.