You missed his point. He is not implying that the IAF is qualitative better, lol, just that an air forces effectiveness comes from equipment, doctrine, and training. The J-11B isn't the only plane the PLAAF fields and it is not the only plane the Chinese aviation will come up with in the next few years.
Also let's not forget the very important fact, that the J-11B is indigenous and India can't even repair the Su-30's engines at home, they have to ship the broken ones to Russia and in return be shipped a new engine.
What this means in terms of replacing war time losses should be fairly clear.