Is Raya really the answer don't want to shit on him but he really isn't great at short passing or building from the back from what I have seen. Something that Ange seems to want
His kicking game is much more suited to quick counters and long passing something Brentford prefer they don't really build from the back.
Just looking at the numbers his short passing stats are similar to De Gea and Lloris, he's actually less accurate than both.
All of Kepa, Steele, Alisson, Ederson, have double the amount of short passes than Raya while hitting around 95% accuracy. Raya passes short far less while hitting just above 85%.
Loved to be proved wrong but I'm not sure he's that comfortable with his feet regarding playing out from the back. Passing long he's very good.