The above is Kincard's translation (Thank you) from a JP dev response, which makes me less hopeful about the impact of blue skill on landing the additional effects. Emphasis mine.
The way I read it is that you have to slap on gear to exceed your blue skill cap in order to get any boost from this change. So if you already had a high m.acc set, there will be no change because you can add on alot more m.acc than you can blue skill.
We will know for certain in a few days.