In the patch notes:

"[2.0] Player attributes have been adjusted as follows:
Skilspeed and spellspeed now affect damage over time and healing over time effects.
The effect of determination on auto-attacks has been reduced.
Critical hit rate now affects damage dealt with a critical strike.
Certain attributes no longer affect parry or block."

It most likely meant STR/DEX, so yeah it seems to be a bug.