How about the level of detail that gets crushed when trying to achieve that 0.2%?
Good blacks are very nice though. We have an old Toshiba that at the time had been reviewed as having "Plasma beating blacks" and on something like The Chase it really hits home. And although not HDR the picture really still impresses me, more than a lot of the 4K screens I see in the shops which are bright & intense rather than realistic.
I take it you did badly at school?
Excellent TV got this for just over £1400 in December thanks to the perks at work discounts and the free note which i sold for £600. My only gripe would be the thickness but it's still looks amazing wall mounted especially with the samsung no gap wall mount.
Are the mathematics because of its brightness?, that alone does not make it better TV. The Q9 is a great set and will be better in certain situations but still suffers from relatively poor viewing angles, blooming and the standard traits of an LED TV, it just does a better job with the technology at making this issues less obtrusive, but regardless how many zones this TV has it still has these problems. Unless you are familiar with CalMAN or something of that ilk, that is a rather sweeping statement you have made.