I don't know who this guy is but testing foil kites is not his strongest part...
First you check/find out two most important, most characterizing parameters of a kite, AR and cell count. Neither of which he did.
Then you check the bridle: which ribs are bridled, what is the bridle spacing (every rib, every second, every third or some combination of these). How long different lines are, how are the cascades, how long the bridle is altogether, how is the tow point separation? Is everything looking normal or is there something new/unusual?
Type of the bridle also gives you a good hint of inner structures of the kite, Then you check/find out what there is inside of the kite.
Then you check the details, LE stiffeners, miniribs, spanwise strapping, bridle line row locations by the chord, speedsystem, pulley size/quality, air intake type/size/location, bridle line thickness and fabric quality, feel and weight.
Then it is time to test how kite flies. This of course depends a lot of conditions, but experienced kiter knows usually quite fast how much potential there is.
Kite itself looks good like you'd expect from North. Can't say more after this kind of "review", and too bad North's own info isn't much better.