Maybe you need to look up what the meaning of the word
blame is.
1. To hold responsible.
2. To find fault with; censure.
3. To place responsibility for (something): blamed the crisis on poor planning.
n.
1. The state of being responsible for a fault or error; culpability.
2. Censure; condemnation.
Idiom:
to blame
1. Deserving censure; at fault.
2. Being the cause or source of something:
Now if "
We are aware that the graphics performance of Assassin’s Creed Unity on PC may be adversely affected by certain AMD CPU and GPU configurations." Isn't a statement placing responsibility for adverse graphics performance on AMD CPU and GPU configurations then i don't know what is.