Hey there! thanks for this.
while the CA/PA boosts were intentional due to there being a sizable and realistic gap between foreign and top level Japanese keepers.
Japan has notably had a problem producing top level keepers except for the few consistent outliers above, The number of attributes at 15 or above was imported somewhat incorrectly and has been rectified for the next update. There will be keepers with gk attributes of 15 or above, but they have been reduced to the realistic level as suggested by data provided from multiple sources.
Likewise mental and physical attributes were already updated in November, and due to the season ending there, there is no new data to determine whether any changes are needed. GK attributes were the only major variable that needed to be researched extensively to faithfully introduce them into the FM series.
You are welcome to point out anything else that that needs to be looked at and I will take a look