Not true tbh, most hits on people are insta kills, or at least the target will die within about 2 seconds, especially with a bolt action rifle (obvious arm/some leg shots are not fatal and can be bandaged).
The movement also may feel "clunky" to someone who is used to mega sprinting while shooting in games like COD, but this is a very different beast. The movement has to be very deliberate, and you have to move and look at cover like a hard point you need to get up against before planning your next move.
I'd say the person playing that vid just isn't very good, you need to lead your targets AND account for bullet drop.
I was playing grain lift yesterday on territory mode, was up in the actual grain lift bit with a bolt action mosin, scored 67 kills in 1 round.
I'm really loving the game, to people saying there is something wrong with the running animations, not at all.
The running is quite distinctive between the Russians and the Germans, the Germans are quite pronounced and sprint with their weapon in 1 hand at their side, which is how they were taught to run with a weapon, it makes target acquisition at range a lot easier.
Also, the graphics are amazing, on ultra it's a beauty to behold, couple that with the first person cover system and very very satisfying weapons.
I think I'm going to be playing this even when BF3/beta comes out, it's very different and I like it for very different reasons.