I think most of the things he hated are the things I liked. Hell, I like the dust effects. It means hairy situations get hairier, with delightful chaos.
Also, I think he's exaggerating the difficulty of the mortar section. Being a reviewer, there's no way he plays on the hardest of the three difficulties (due to time constraint), and on the middle of them I may have died all of three times.
I he'd thrown out a gripe like "checkpoints are farther apart than typical", meaning "getting sniped sucks more than usual", I'd have followed him. If he'd bitched about all the vehicle sections, particularly some of the chopper sections where you must hit all the TOW launchers or get one-shotted... instead he bitches about dust.