For what concerns the global increment, I don't think it has ever been mentioned before it is applied, (maybe a line in the news a couple of times) since it uses to be an small %. Last seasons it was a decrement, so most of us were happy to see our salaries being reduced. The problem is that it's very difficult to be happy when you see an increment instead.
i do have a question that if the secondary skill salary has to be changed and show its significancy
About this, the reality is that this change hasn't been so high, so it can be easily disguished with other circumstances. Last season global salaries decreased, so it was easier to see it.