yes, its like some people dont like nasser and start some campaigns to put the man down. During the 90s Nassers back was top notch. Less detailed than Dorians with less shape than his but still one of the best. Also in some shots, specially FDB Nassers lats look even bigger than Dorians.
And then you have Jay Cutler with ZERO lower back winning olympias and all, religion of peace 
Nasser's back sucked , it sucked on almost every level it has nothing to do with not liking him , he gets credit where credit is due but he gets none for his back
the only thing his back was wide , but it wasn't wider enough for a 285 pound bodybuilder
Start at the top , upper back development traps , his traps were pretty big not on par with Yates or as big and as thick ( when viewed from the back ) as they needed to be for a 285lb guy , they didn't show much depth and separation from the other muscles
Mid-back , teres and infraspinatus , again no depth or great separation between these muscles and no clear-cut separation from the lower-traps ( in the back double biceps shot ) not as thick as they need to be either
Lats , Nasser's lats are flawed because they are high and they almost disappear in the back double biceps shot , they're not in any way shape or form thick enough for a guy his size and weight , they don't match the size of his other parts ( proportion & balance ) and show NO striations or details what so ever , along with no clear distinct sepration from the teres and infraspinatus
Lower back? what lower back? he has no spinal erectors no striated x-mass tree , he pulls his arms back to highlight his lower back detail that doesn't exist
His back as a whole sucks for all of those reasons , he knew it and everyone else did , it cost him the Olympia , his back disappeared from the rear and made him look a lot smaller , his back was not proportionate to the rest of his physique , he was like two different bodybuilders from the front & back
the top pic clearly illustrates everything I just typed