Our skintone is actually very difficult to work with, due to acne scarring, pit-marks, under-eye circles. Desi skins require heavier coverage firstly due to our skin and secondly due to the norms and particular look they want for the wedding...
Airbrush makeup dries from creamy to matte and thus leaves u with the "cakey" feel.. I've used it several times for creative shoots, where heavy coverage wasn't required and it worked great, however on desi brides it looks really artificial and at the end I have to go over with a stick foundation!
Western bridal makeup is very light/subtle compared to our makeup, majority of them have little or no blemishes at all.. the only problems they have is blue veins, dark circles or freckles :) and that's easily covered by AB makeup.
A good makeup artist shud be able to correct/conceal all u're blemishes, and contour as well.. it's difficult to contour with AB makeup as well.