Correct me if I'm wrong, but the bonus isn't supposed to be viewable in the character stats. Which means you can't really now if that works or not (must log it to eventually see it), but that's how retail should work.
I test on ru off.
When char is run - stats not change, but when char is run and buff on him Agility, his stats change:
Evasion = base Evasion + Acrobatic move + Agility
On l2j server when char is run and buff on him Agility, his stats change Evasion = base Evasion + Agility