Thoughts on cover mechanics

So several FAQ's in and we have a problem with cover. I do enjoy the new streamlined cover mechanics in 8th, because boy was that bloated in 7th, but there is a serious problem in 8th for vehicles. Vehicles must be 50% obscured to receive the benefit of cover. That's the first bit and it's good and makes sense. But they must also be in terrain for this to take effect. So all I can think of is a situation where you have a massive LOS blocking terrain feature and your vehicle sits behind it, 99% obscured by it, with just a little sticking out, and you don't get a save because it's not in a terrain feature. In my opinion this is a silly oversight by GW, and I hope they see the error soon.