Hello Yan Rosh,
The datasheet mentions that the relative positions of signals are same between FAB024 and FAC024 packages. As you mentioned the distance of different balls from the edges are different, which you have to take care on your board.
I could find note 4 that you mentioned on page 4 of the datasheet. Please see the latest datasheet at: http://www.cypress.com/file/192131/download . Note 1 on page 40 says "1. Signal connections are in the same relative positions as FAC024 BGA, allowing a single PCB footprint to use either package."
Thanks and Regards,