Unity 5.4 - unity 2017 ruin GPU instansing

Unity ruin instancing if i turn on lightprobes.
I know that if object lit by a different lightprobe it’ll ruin GPU instancing, I understand it, BUT if i set override anchor to use same Lightprobe point IT STILL RUIN GPU instancing! If I set override proxy volume and set same volume to objects it still ruin GPU Instancing. That unfair everything ruin GPU intstancing, SEEMS THAT IT IS BUG! This bug veeeeery old I MET it firts time in 5.4 unity, I met this bug in every unity after unity 5.4 in every patch in every alpha, beta releases to 2017.3.0f3 is too.

UP the thread, still no answer