Yeah that's a point, also bear in mind there will be an absolute forest of wires hanging out of the back adding depth. I can't really fault the amp in any way, other than it always seems to want to do a software update (and thus won't connect to the app remote) in the hour or so before a party.
I have a slightly older version (RX-V775) which appears to be mostly identical in function and appearance. It's very good.