In my opinion the .9 accuracy against cover is one of the most glaring problems with the unit. It negates a lot of the usefulness of cover since the sniper can knock off models even when they're in cover almost as well as when they're out in the open. Infantry being able to ignore cover means that good play is not incentivized against them and a better counter is to just blob up superior numbers and facerush them, which isn't really enjoyable for either side and isn't what this game is supposed to be about. I'd be against it being aded for pathfinders too since I think it's just in general a bad mechanic, especialy when given to the crit rifles.
the 0.9 bonus was given exactly for that, so they could still snipe model in cover like a normal sniper, that's the point of the sniper rifle, in my opinions it does not create that much of a problem, it's not like the old ober STG that ignored cover and dealt tons of damage
it's just used for crit confirmation,giving it to pathfinder would make them more viable too, in the first place they are supposed to "replace" the sniper of the other factions, do u see sniper missing while the enemy is in cover ?