They know it and as far as I know they are working on it. 
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On topic: When the new gunsights appeared I immediately did the maths and the charts to fully utilize the German gunsights.
But interestingly I found myself to be just as, and often even more effective by going just by my gut feeling for the initial distance. Probably in part because it required less concious thinking and estimating, but then I'm having plenty of practice compared to the average AH player. Someone with less experience might benefit more from it...
I hope so. I've offered as I'm sure you have as well to share a lot of information for any and everyone to have access to, it would be good for people to reference. Most people have no clue that the British 60 pdr rockets are the best air to ground rockets in the game and the 8 of them on a Mossi or Tiff = over 400 lbs more damage than 2/500lb bombs. Handy to know when pounding a hanger, shore battery, or a ship. Likewise, most people do not know the M4/75mm does more HE damage to a town when compared to a Tiger using just the main gun alone (M4/75mm = 178dmg X 15 rds a min = 2670 dmg vs Tiger's 88mm = 234 dmg x 8.5 rds a min = 1989 dmg)!!! Now add in the Calliope rockets, the lack of risking perks, and it is real easy to see who the king of pounding a town is.

I agree, the "gut" feeling is still a better starting point than doing the mathematical formula for each engagement. I set my sights to 1000 yards and adjust from there using the standby for M4's, T34's, and Panzer's: 4 mils from side = 1600 yards away; if 2 mils wide while facing = 1600 yards away; and when facing 1/4th or 3/4th towards me and is 3 mils wide = 1600 yards away. The KT, Tiger, and Panther are all larger than the "stand by". The 1600 yards is the general distance while the actual distance varies from (4 mils from side) 1650yd for the T34, 1640yd for the M4, and 1617 yd for the Pzr IV. While facing the front of the enemy tank, if 2 mils wide the T34 is actually 1625yd, the M4 is 1460yd, and the Pzr IV is 1800yd.