We are aware.
As 0.8.5 changes have brought much needed and requested AA DPS consistency, it seems like in many cases the plane losses became slightly excessive, and overall CV efficiency was nerfed too much. While we do like the change, we still need to keep CV efficiency reasonable. Over the weekend and early next week we intend to observe the situation very closely, determine the amount of needed changes to plane HP, and implement a hotfix. Unfortunately, only live server data will help us to polish the change, preserving its core concept – more rewarding and meaningful anti-air defense. Stay tuned for more news, and we sincerely apologize for any inconvenience.