That’s a 7.1.2 receiver. I told you they were expensive :D When a receiver is advertised as 9.2 it means 9 amplified channels and 2 passive subwoofer outputs. A receiver that can do 7.1.4 would be designated as 11.2 like this one: https://www.crutchfield.com/p_158AZ5KES/Sony-ES-STR-AZ5000ES.html
No! Receivers aren’t meant to drive multiple speakers from a single output, doing so could cause damage. Your receiver is either 5.1.2 or 7.1 . It is not 7.1.2 . They do make 7.1.2 and 7.1.4 receivers but those are ridiculously expensive.