Let me first ask you Nunz, what have you observed so far? I am not trying to be smartarze, but that whole issue is a broad term.
What I have observed has been a comfortable increase in the "popping" power of the 50 cals again ( I say again, because as a very longtime AH enthusiast, this version seems to have placed them back to where they were). Others, including yourself may have observed other things or even something different with 50 cals.
Another area of damage, includes areas of failure. How many hits in what particular area equals failure of that structure / area. Again, I could point to specific areas and raise complaints, but as a whole, I am comfortable with what I have seen.
Lastly, I would have to say that the improvements in tracers, hit sprites and vehicle fires have done loads in the terms of debris and effects, and I would have to test the TBM to see if there are noticeable changes to "broken" damaged aircraft displays.
So, if there is something more specific that you had in mind that might clear it up, at least for me.