Cazorla was at his best for Arsenal when he played a bit deeper. For the majority of his career at Arsenal he wasn't the AMF, more like a CMF on the base of midfield. He was far more of an irreplaceable player for the gunners than both Ozil and Rosicky, the former being a 'ghost' and the latter always injured despite being a godly player. And the club still misses a player of Cazorla's caliber in midfield, even nowadays.
Also, Cazorla has lower SPS than both of them, Rosicky has a 88SPA/90SPS combo while Ozil isn't too far behind with 90/87 on his classic set. I wouldn't say Cazorla is rated as a better passer than either of them in PSD. Him being a better long passer than short is debateable, but just having higher SPA alone doesn't make you a better passer when the other player has substantially higher SPS.