I think it's still mini-ITX. The case might be a little bigger than it needs to be, but if you want more than a drive or two in your system, and a full length double-slot graphics card, there aren't too many choices, especially without paying a lot more. We'd likely be howling if he used one of those cheap RaidMax cases, Coolermaster isn't much better, and criticizing the expense if he used Lian Li. It is a larger case that makes a mITX board appropriate for more builders, including gamers or those who want the safety of using RAID1 volumes.
If HBM allows much stronger half-height gaming cards, that will open up some much smaller choices, so let's hope that happens soon.