I didn't see AA change too much , maybe their damage lower than before ? You can escape by dive as fast as you can to low altitude and find covers on the ground , the real problem is the range of AA is too long , dog fight become boring after that . But I did beat one station AA by drop bomb from Mosquito at high altitude , anyway it took me a lot of time .
I think decrease the range of AA to from current distance to its 90% or decrease some damage to distance target will be better . The most important thing is hide the station AA position information especially the empty one to pilot .
By the way do you notice the 8 rockets for planes in Pacific theater are weaker than before ? They can't even finish a tank with half HP .