AD was certainly lacking, and that below the belt Bholari strike was embarrassing. I am sure the AD can be bolstered and PAF and PA will notch it up. I think India will go the way of SSMs rather than IAF in future, so Pakistan definitely needs a massive AD upgradation.
Pakistan's miscalculation of Indian SSMs was as bad a IAF's assessment that sending in a strike package to "hit terrorist targets only" will not draw an all out PAF response. Both sides wanted to keep limited war, and but in fact, it was an actual war, just limited to 4 days. PAF should have drawn more blood when it had the chance. Indian response would have been the same, they attack your airbases whether you shoot down 5 of their jets or 10 or 20